Datacom DM16E1 Installation And Operation Manual Download Page 39

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DM16E1 / DM4E1 Operation and Installation Manual - 204-4001-19

In addition to these led messages, status can be monitored via the Terminal port and via the
DmView software. Depending on the configuration, LOS and AIS can be indicated via the alarm
led and relay.

When tests are being carried out on a tributary interface, this will be indicated via the TEST led
on the front panel.

4.3. Electric Characteristics of the G.703 E1 Interface

Speed: 2048 kbit/s ± 50 ppm

Pulse format: rectangular

Nominal pulse duration: 244 ns

Relation between amplitude of positive and negative pulses at midpoint of pulse width: from 0.95 to 1.05

Relation between width of positive and negative pulses at half nominal amplitude: from 0.95 to 1.05

Number of pairs in each transmission direction: 1

Coaxial cable:

•

Nominal impedance: 75 ohms

•

Peak voltage of a pulse: 2.37 V ± 0.237 V

•

Peak voltage of a space: 0 V ± 0.237 V

Twisted pair:

•

Nominal impedance: 120 ohms

•

Peak voltage of a pulse: 3 V ± 0.3 V

•

Peak voltage of a space: 0 V ± 0.3 V

4.4. E1 Interface Configurations

The following configurations are possible:

•

Alarm generation enabling for each E1 tributary.

•

Test enabling.

•

Tributary cascading (drop-insert).

4.5. Configuration Straps

DM4E1:

•

E01T to E04T – Grounding via transmission coaxial cable shield (OUT).

•

E01R to E04R – Grounding via reception coaxial cable shield (IN).

DM16E1:

•

E01T to E16T – Grounding via transmission coaxial cable shield (OUT).

•

E01R to E16R – Grounding via reception coaxial cable shield (IN).

Position C (connected): connects the coaxial cable shield to the frame ground.

Position I (isolated): does not ground the coaxial cable shield.

Summary of Contents for DM16E1

Page 1: ...DM16E1 DM4E1 DM16E1 DM4E1 INSTALLATION AND OPERATION MANUAL 204 4001 19 Release 19 Date 16 1 2009 ...

Page 2: ...rs done by DATACOM unauthorized personnel This warranty does not cover repairs done at the customer s site All equipments must be sent to DATACOM to be repaired Quality Management System certified by DQS according to ISO9001 Register number 287097 QM Although this document has been written with care the company does not assume responsibility for occasional mistakes and omissions in its content Lik...

Page 3: ... Support o E mail suporte datacom ind br o Phone 55 51 3358 0122 o Fax 55 51 3358 0101 Sales o E mail comercial datacom ind br o Phone 55 51 3358 0100 o Fax 55 51 3358 0101 Internet o www datacom ind br Address o DATACOM o Av França 735 Porto Alegre RS Brasil o Zip Code 90230 220 ...

Page 4: ...ent or a part is ESDS Electrostatic Discharge Sensitive It should not be handled without grounding wrist strap or equivalent Non ionizing radiation emission IWEEE Directive Symbol Applicable in the European Union and other European countries with separate collection systems This symbol on the product or its packaging indicates that this product must not be disposed of with other waste Instead it i...

Page 5: ...up to 42 4V peak or 60Vd c TNV 1 none Telecommunication Network Voltage 1 Ports whose normal operation voltages do not exceed the limits of SELV on which overvoltages from telecommunications networks system are possible TNV 2 FXO Telecommunication Network Voltage 2 Ports whose normal operation voltages exceed the limits of SELV usually up to 71V peak or 120Vd c on which overvoltages from telecommu...

Page 6: ...n Choose Equipment to Configure 22 3 8 Equipment Main Menu 24 3 9 Config Wizard 24 3 10 Settings Menu 26 3 10 1 General Settings 28 3 10 2 Interface Selection 31 3 10 3 Tributary Table 32 3 11 Tests Menu 33 3 12 Status Menu 33 3 12 1 Device Status 34 3 12 2 Interface Status Menus 36 3 13 System Parameters 36 4 G 703 TRIBUTARY INTERFACES 38 4 1 General Interface Characteristics 38 4 2 Status Indica...

Page 7: ...on 62 7 12 Status 62 7 13 Tests 63 8 10 100BASET ETHERNET REMOTE BRIDGE 64 8 1 Ethernet Physical Level 65 8 2 Operation via Terminal 66 8 3 Configuration 66 8 3 1 Inverse Multiplexer Management Configuration 68 8 4 Status 68 8 5 Bridge with packet ordainment Bridge Packet Sequencing 69 8 6 Different Bridge hardware versions for the DM16E1 DM4E1 equipment 69 8 6 1 SW Change from Bridge_HW1 to Bridg...

Page 8: ...anagement 93 14 SOFTWARE 94 14 1 How to Identify the Current Version of the Software 94 14 2 Download via TFTP 94 14 3 Download via the Terminal Port 95 15 INSTALLATION 96 15 1 Wall and 19 Rack Mounting 96 15 2 Optical Connections 96 15 3 DM16E1 DM4E1 Mixed Operation 97 15 4 Point to Point Topology 97 15 5 Unidirectional Ring Topology Cascading 97 15 6 Bidirectional Ring Topology 98 15 7 In Line T...

Page 9: ...oopback at an optic interface 54 Figure 18 Local digital loopback at an optic interface 55 Figure 19 A DM16E1 DM4E1 loopback operating with no failures 57 Figure 20 Failure in the main loopback 57 Figure 21 Electric E3 interface card panel 59 Figure 22 Local analog loopback in an electric E3 interface 61 Figure 23 Local digital loopback in electric E3 interface 61 Figure 24 Strap location 61 Figur...

Page 10: ...out for V 36 V 11 46 Table 10 Characteristics of optic interfaces 53 Table 11 Optic interface led indicators front panel 54 Table 12 Leds indications for electric aggregates front panel 60 Table 13 Pinout for RJ45 Ethernet connector 65 Table 14 IP addresses for private networks 73 Table 15 Valid or global IP addresses 73 Table 16 Pinout of the DB9 connector for alarm inputs 89 Table 17 Pinout of D...

Page 11: ... to the equipment is made with an RS 232 serial cable The equipment can be managed via SNMP either by the Ethernet port on the front panel or in band utilizing routing or remote management SNMP management is also available through the DmView application software which runs over an HP Open View platform The application is able to manage a whole network making it possible to configure check status c...

Page 12: ... same fiber Laser transmission power Type of connector used to connect the fiber optics See chapter 6 to obtain more details 1 1 2 Electric Aggregates E3 interface for DM16E1 and DM4E1 operating in accordance with G 703 of 34 368 kbit s E3 1 2 E2 and E3 Multiplexing Principle DM4E1 and DM16E1 multiplexers are based on G 742 and G 751 recommendations The Multiplexing structure is represented in Fig...

Page 13: ...others and this way form an optic ring with 100 utilization of the link More details can be found in chapter 15 Figure 1 PDH hierarchy 1 3 Ethernet Remote Bridge The equipment can be supplied with an Ethernet Remote Bridge interface card which implements a 10 100BaseT port via an RJ45 connector located on the rear panel The connector and led indicators are always assembled independently from the c...

Page 14: ...g corresponds to the frame ground connection and the other two pins correspond to power units Polarity is not important as shown in Figure 2 below The body of the equipment is connected directly to the frame ground The equipment can be connected to any voltage within the ranges specified below without any kind of manual selection This is automatically done by the equipment for both the main and ba...

Page 15: ...a 19 rack with a height of 1 5 U Height Width Depth 65mm without rubber base supports 72mm with rubber base supports 435mm without subrack brackets 483mm with subrack brackets 232mm Table 2 Dimensions 2 5 Weight Table 3 shows the weights of DM16E1 DM4E1 and respective modules DM4E1 3 10 DM16E1 3 40 E3 optic 0 10 Bridge 0 10 Power Supply 0 18 Interface 0 14 E3 electric Aggregate Tributary Weight kg...

Page 16: ...4 signals at the V 35 tributary ALARM indicates simultaneously alarms of high and low priority This indication will remain on until the alarm is eliminated and the user initiates a command of recognition through the terminal port or via the DmView SNMP management software More details in chapter 12 TEST indicates that the equipment is undergoing a test It will remain lit while any interface is exe...

Page 17: ... DmView software A led indicates the status of the link EXTERNAL CLOCK this BNC or IEC169 13 connector can be connected to an external clock source of 2048kHz in accordance with G 703 for use with E1 interfaces MAIN and BACKUP ports for DC or AC voltage as described in chapter 2 2 TRIBUTARY 1 to 16 in DM16E1 the equipment can be supplied with RJ45 connectors for an impedance of 120 ohms or with BN...

Page 18: ...To be sure that this will not happen measure the voltage between these pins using an AC voltmeter If a potency difference is detected check to see whether the DM16E1 DM4E1 and the PC are duly grounded and then interconnect the signal ground to the DM16E1 DM4E1 frame ground see item 10 1 This should solve the problem After taking these steps measure the AC voltage again before connecting the serial...

Page 19: ... topology configurations Different topology configurations alter the normal flow of data which makes management impossible Correct configuration of MAIN BACKUP aggregate cards Errors in this configuration can cause the isolation of equipment in the ring or loss of the management link It is recommended not to alter factory values for these parameters MAIN card in slot AG1 and BACKUP card in slot AG...

Page 20: ...d after having selected the equipment to be configured see chapter 3 7 The insertion of the password removes the equipment from trial automatically Locally on the authentication screen of the terminal when inserting the specific equipment password same password for local or remote equipment the screen presented below is displayed On the authentication screen the software requests the equipment acc...

Page 21: ...16E1 Multiplexer 1 Choose Equipment to Configure 3 SNMP Parameters 4 Terminal Password Configuration 5 Firmware download to local Equipment E Exit R Exit and Reset Option Main menu options Choose Equipment to Configure Selection of the equipment to be managed with a choice between local and some remote locations This option is detailed in chapter 3 7 SNMP Parameters Permits the configuration of pa...

Page 22: ...is disabled and then enabled again the terminal reverts to the factory value proxySNMP Factory value YES Change Password Permits the terminal access password to be modified Firmware Download to Local Equipment Enables the firmware updating via the terminal For further efficiency the update through TFTO is recommended refer to 14 2 item Exit Exit and Reset Presents options to close configurations v...

Page 23: ...en then the password for ending the trial period is automatically lost If the user keys in ENTER the equipment will continue to be used on trial Once an equipment is chosen options 1 to 2 in the example configuration can start either locally or remotely In order to update equipment management properties use the Refresh option activated by ENTER To return to the main screen of the Terminal use the ...

Page 24: ...ve chapters Settings Menu Allows enabling and configuration of data interface parameters test activation and alarm generation Tests Menu Enables tests in the data interface Test activation in remote devices may disconnect the management system See chapter 3 3 for more information Status Menu Verifies the status of equipment interfaces Also allows restarting the alarm status View System Parameters ...

Page 25: ...reen are automatically activated and saved on E2PROM when pressing ENTER Changes to the gateway default configuration will generate a reset on the respective equipment Configurable parameters are shown in table below Parameter Topology Read Community Write Community TrapN Interface DLCI Host address Tributary Clk Direction Enable DLCI Sub Net Address Sub Net Mask Base address for structured sub ne...

Page 26: ... E2PROM settings a Load current settings from memory b Change settings c Test the new settings without applying them optional d Apply the new settings on the equipment volatile memory e Save the settings in non volatile memory E2PROM These steps are necessary because many settings are dependent on each other For example in DM16E1 devices the V 35 tributary interface uses the same physical space wi...

Page 27: ...latile memory E2PROM settings This is the standard response when the equipment is restarted and when a request is made to store active memory contents equipment configuration on E2PROM memory Temporary Config Indicates that the user memory is not identical to the equipment memory This occurs in response to changes made to the user memory that are not activated yet Temp Full Compatible Config Indic...

Page 28: ... Settings DataCom Telematica DM16E1 Multiplexer local settings equip General Settings Topology Point to Point ALS Protection Retry Time 10 seconds 2048kHz E1 AIS Reference Internal Aggregate Backup Automatic Backup Enter Time Instantaneous Backup Return Time 30 seconds External Alarm 1 Disable External Alarm 2 Disable External Alarm 3 Disable Alarm Output Activity Time Forever Alarm Output Frequen...

Page 29: ...s the protection data link The main advantage of this topology is the possibility of using bidirectional cards hence using only one fiber link instead of two between two adjacent points in the ring As two cards are needed to implement this configuration the use of backup is native Line Terminator Line Network In line configuration It works similarly to the Cross Ring topology except for the fact t...

Page 30: ...tionally a recognition signal is needed so that the equipment goes back to the main link once the Backup Return Time is reached See menu Status Equip Forced Using Backup Forced Using Ring Backup Forced Generating Ring Backup Forced Forwarding Ring Data These values are used to force the equipment to behave as if it were using the backup link Backup Enter Time Backup Return Time These times are use...

Page 31: ...iguration menus provide a few functions in common such as Slot Port Type Below the menu description Card Settings in the example there is a description of the interface that is being configured Besides the Slot Port where the card is inserted the interface type is indicated One should note that modular aggregate interfaces are placed in slots AG1 and AG2 while the others remain separate according ...

Page 32: ...pe selection is done through the SPACEBAR and TAB scrolling keys In order to change the position of the cursor in the table the arrows should be used It is important to note that the table only deals with the channels used by tributaries in the aggregate table The specific configurations of these very tributaries must be done separately in the corresponding menus Whenever there is a conflict betwe...

Page 33: ... lost 3 11 Tests Menu The tests menu is similar to the settings ports menu presented above See chapter 4 11 for further information Whenever a test is activated in a port information on the link for aggregates and E1 tributaries will always be forced to synchronization OK status The purpose of this measure is to prevent the management channel from being overloaded because of a channel under mainte...

Page 34: ...Clock Error ignored External Alarm 1 Disabled External Alarm 2 Disabled External Alarm 3 Disabled Reset latched A larms Ac K Alarm Semi Automatic B ackup return ENTER Refresh ESC Exit Possible status options Up Time Indicates how long the device has been on since last resetting BackUp State Indicates how the link protection for the main aggregate MAIN is acting If the protection is off this field ...

Page 35: ...ade available in the DB9 connector located on the rear panel The alarm output follows the latched alarm status It has three status possibilities No alarm No active alarm Acknowledged alarm There is an active alarm that was recognized by the user The recognition command is given through the K key in the same menu The device returns to the No alarm condition after a reset request in latched alarms p...

Page 36: ...atus for both interfaces Operation Configures the activation of a card and indicates if the card is Active or Not active Leds of inactive cards panel remain off DataCom Telematica DM16E1 Multiplexer local status ports E1 Port Status Slot 3 Port 01 E1 tributary Ports 16 Operation Active Current Tests None Link LOS ENTER Refresh ESC Exit PgUp Pre V ious Card N ext Port PgDn Current Tests Indicates i...

Page 37: ...sets since factory test 225 SW BOOT Version 7 Firmware Version 036 Release Date 09 06 07 04 53pm mm dd yy hh mm HW Version 6 E2PROM Version 4 MAC Address 00 04 df 00 aa 87 SN 626918 ID 0 ENTER Return and Save ESC Return without Saving HW Version Hardware version of equipment E2PROM Version Equipment E2PROM version E2PROM is revised every time a new interface or a new configuration option is added ...

Page 38: ...C and RJ45 connectors Coaxial cable shields can be grounded via straps See item 4 5 for more information The G 703 signal output is at the OUT connector 75 ohms or between RJ45 pins 1 and 2 120 ohms The G 703 signal input is at the IN connector 75 ohms or between pins RJ45 4 and 5 120 ohms Function Signal RJ45 Signal source Data transmitted OUT 1 ECD DM16E1 DM4E1 Data transmitted OUT 2 ECD DM16E1 ...

Page 39: ...litude from 0 95 to 1 05 Number of pairs in each transmission direction 1 Coaxial cable Nominal impedance 75 ohms Peak voltage of a pulse 2 37 V 0 237 V Peak voltage of a space 0 V 0 237 V Twisted pair Nominal impedance 120 ohms Peak voltage of a pulse 3 V 0 3 V Peak voltage of a space 0 V 0 3 V 4 4 E1 Interface Configurations The following configurations are possible Alarm generation enabling for...

Page 40: ...he local analog loopback is used to test the analog part of the interface card circuits from a remote location connected via the aggregate Data received at the analog interface are ignored The figure below shows the test conditions Figure 10 Local analog loopback at a G 703 interface 4 8 Local Digital Loopback LDL The local digital loopback operates in both directions The external E1 connection G ...

Page 41: ... enabled in order to take effect and may be saved in E2PROM When in doubt regarding memory or menu access see chapter 3 4 9 1 Configuration Configuration of DM16E1 and DM4E1 tributaries consists of two parts aggregate map configuration and port specification If required one or more positions can be reserved for tributaries in the aggregate map These are configured using a letter or letter and numb...

Page 42: ...nverse multiplex It is important to bear in mind that the transmission and reception paths involve all the units in a ring configuration For this reason DM16E1B is set to establishing a Point to Point link between A and C Tributary 11 of unit B could also be enabled thereby operating the E1 channels of A B and C in cascade This type of operation is discouraged because a fault in any of the cables ...

Page 43: ...n an aggregate Used for normal channel operation Forced Forced AIS transmission Used for channel testing It is not possible to generate a clock signal for an E1 tributary internally The clock received at E1 ports is always passed on to the next link as long as the E1 signal is within the G 703 clock tolerances 4 10 Status The screen below shows the status menu for E1 ports status ports E1 DataCom ...

Page 44: ...6 Test Function None 1 None 2 Start LDL 3 Start LAL Option ESC Return to Previous Menu PgUp Pre V ious Card N ext Port PgDn In order to activate tests in a specific port both the port and the test activation must be enabled see chapter 4 9 1 The options 1 None 2 Start LDL and 3 Start LAL select the active test Note that the activation of an LDL LAL test in the remote unit functions as a remote loo...

Page 45: ...ock CT113 This characteristic is very useful when the digital interface is linked to NewBridge equipment operating as DCE The interface rate can be configured as fractional Nx64 kbit s being transmitted to the aggregate as structured E1 with G 704 compatible frame 5 1 V 35 Interface At this interface data signals and clocks are of differential balanced type in accordance with appendix II of recomm...

Page 46: ...CT102 b DTE Common Return respectively At the digital interface CT109 reflects the status of the aggregate remaining off whenever the aggregate is in an error condition DB25 DB37 ISO2110 Amd 1 ISO4902 101 Frame ground P Gnd 1 1 102 Signal ground S Gnd 7 19 TDa 2 4 TDb 14 22 RDa 3 6 RDb 16 24 RTSa 4 7 RTSb 19 25 CTSa 5 9 CTSb 13 27 107 Modem ready DSR 6 11 Mux 108 Terminal ready DTR 20 12 DTE DCDa ...

Page 47: ...al functioning except when the BERT sequence is activated CT108 is a control signal generated by the DTE indicating that the terminal is ready DTR It can be configured to be observed or ignored forced to on CT109 is a control signal generated by the equipment indicating that it is detecting the aggregate carrier signal and that the receiver is synchronized In case of failure in the aggregate CT109...

Page 48: ... be used in two directions to the routing interface or to the aggregate To select the aggregate direction the indicator V should be placed in the appropriate position in the aggregate map as shown in figure below Note that if another interface is selected in the remote unit an E1 tributary for example interface conversion will be automatic Further details on aggregate map configuration can be foun...

Page 49: ...t ESC Exit SPACE TAB Change PgUp Pre V ious Card N ext Card PgDn The V 35 interface configurations include Alarms Enables alarm generation by the port Alarm generation is dependent on signal enabling Alarm conditions Loss of CT113 or CT128 clock configured CT105 or CT108 disabled off Tests Enables activation of tests at the interface CT105 and CT108 External signals received by the DTE Can be set ...

Page 50: ...that generate very large data delays Rate Nx64 kbit s Allows configuration of the number of channels used by the V 35 A G 704 framed E1 signal is transmitted to the aggregate with the number of timeslots selected beginning with timeslot 1 If 32 channels are selected the operating mode will be transparent For configurations with other numbers of channels Clock cannot be configured as 2048kHz E1 AIS...

Page 51: ...r Error Counter Option ESC Return to Previous Menu PgUp Pre V ious Card N ext Card PgDn BERT is always directed to the aggregate using the clock selected at the V 35 interface This test can be used as a reference to monitor problems in the aggregate channel in two units where the V 35 is not used for data To test a channel using BERT select 32 channels for the V 35 interface and use the internal c...

Page 52: ...ptic E3 interface over 2 singlemode TX fibers at 1310 nm short range nominal power 15dBm DM16E1 SS15 Optic E3 interface over 2 singlemode TX fibers at 1550 nm short wavelength nominal power 15dBm DM16E1 SL13 Optic E3 interface over 2 singlemode TX fibers at 1310 nm long wavelength nominal power 5dBm DM16E1 SL15 Optic E3 interface over 2 singlemode TX fibers at 1550 nm long wavelength nominal power...

Page 53: ...onsidering Singlemode Fiber with 0 25dB km loss 1550nm 6 2 Characteristics of Optic E3 Interfaces Transmitter 1310 or 1550 nm diode laser power options for short or long wavelength Multi mode receiver PIN photodiode Minimal level 31 dBm for BER Bit Error Rate of 10 12 maximal signal intensity 14 dBm Single mode receiver PIN photodiode Minimal level 34 dBm for BER of 10 12 maximal signal intensity ...

Page 54: ...n this case Table 11 Optic interface led indicators front panel 1 In the case of Backup cards it indicates that the link has problems 2 It also indicates that the link is OK for Backup cards These status options can also be visualized on the Terminal port and on DmView The TEST led on the front panel will turn on when tests are performed on this card The led corresponding to the aggregate interfac...

Page 55: ...6 8 Configuration The aggregate configuration menu settings port Agg is shown in screen below DataCom Telematica DM16E1 Multiplexer local settings ports Agg Card Settings Slot AG1 Port 01 E3 SM Short Range Bidirectional 1310nm Operation Enable Alarms Enable Tests Enable Operation Mode Main ENTER Save and Exit ESC Exit SPACE TAB Change N ext Card PgDn Operation Configures card activation Leds are o...

Page 56: ...Link Current synchronization status of the aggregate interface Also indicated by the AGREG1 and AGREG2 leds on the front panel Values Sync OK Aggregate channel synchronization is OK This indication is also used when the backup link is OK in Point to Point network topologies No Frame Sync Loss of frame synchronization in the aggregate interface Rec AIS Aggregate interface receiving an all ones sign...

Page 57: ... the main loopback Remote Alarm Alarm indication on remote equipment according to G 742 and G 751 This alarm signal should not be mistaken for the equipment alarm logic output this field responds only to alarm recommendations associated with the multiplexing demultiplexing process ALARM indicates the presence of alarm in the remote device according to G 751 E2 Channel n Link Status of E2 channels ...

Page 58: ...3 Start LAL Option ESC Return to Previous Menu N ext Card PgDn None Normal operation on the interface Running LDL LAL Indicates test activation The options 1 None 2 Start LDL and 3 Start LAL activate deactivate tests on the interface The activation of tests on remote aggregate interfaces causes loss of the management link and should not be set If this setting is made by accident will be necessary ...

Page 59: ... into optic and vice versa 7 2 DM16E1 E3Ei Internal Card When it is necessary to operate as an electric x optic converter with two optic interface cards for protection 1 1 it is possible to install an electric E3 interface card in the equipment This card is called DM16E1 E3Ei and it cannot be used as an aggregate card It is installed in the position of the Ethernet Remote Bridge and the connection...

Page 60: ... E3 cards or aggregate cards can be visualized through the Terminal port or through the DmView software When executing tests on this card the TEST led on the front panel turns on 7 5 Electric Characteristics of E3 G 703 Interface Speed 34368 kbit s 20 PPM Pulse format rectangular Number of pairs in each transmission direction 1 coaxial pair Nominal impedance 75 ohms resistive Peak voltage of a pul...

Page 61: ...al cable OUT E2 Grounding of the reception coaxial cable IN CONN position grounds the coaxial cable shield ISOL position does not ground the coaxial cable shield Figure 24 Strap location The DM16E1 E3Ei internal card uses the tributary 1 connectors Thus the function of the straps mentioned above is carried out by the straps of tributary 1 See item 10 2 for more information 7 10 Operation via Termi...

Page 62: ... E3 Tributary Alarms Disable Tests Enable ENTER Save and Exit ESC Exit SPACE TAB Change PgUp Pre V ious Card N ext Card PgDn Options Operation Configures the card activation The leds from disabled cards remain off Alarms Configures alarm generation via the port Tests Configures the possibility of activating tests on the interface 7 12 Status The screen below shows the status menu for the internal ...

Page 63: ... received inside the E3 frame In a transparent operation this indication is not available 7 13 Tests The test menu allows the activation of LAL and LDL on the internal E3 interface The active test is indicated on the Test Function field DataCom Telematica DM16E1 Multiplexer local test ports E3trib Test functions Slot 5 Port 01 E3 Tributary Test Function None 1 None 2 Start LDL 3 Start LAL Option E...

Page 64: ...store up to 322 Ethernet packets of 1522 bytes Alternatively a higher number of smaller packets can be stored On the Mux Ethernet transmission direction there is a buffer for 64 Ethernet packets of 1522 bytes If the packets are smaller more packets can be stored There is no filtering on this data transmission direction because this was already carried out by the Bridge of the remote equipment The ...

Page 65: ...width in a single TCP connection through the interface can be lower than the configured value It is recommended the use of bridge card_HW2 for this type of application 8 1 Ethernet Physical Level According to the IEEE 802 3 specification the Ethernet interface should be of the 10 100BaseT type twisted pair On the rear panel of the card there is a led that indicates the status of the Ethernet link ...

Page 66: ...ether or not to use the inverse multiplexing option in Ring operations the inverse multiplexing option should be turned on see item 8 for further details When directing the Bridge to G 703 tributaries it is mandatory to use the inverse multiplexing system In the DM16E1 model if a channel is configured as BG Bridge on the aggregate map it is used as an output for the Bridge DM4E1 uses the identifie...

Page 67: ... effect when the Bridge is working with inverse multiplexing Inverse Multiplexer Management Enables management of the equipment when using Inverse Multiplexing The information of management flows through in packets inside the E1 channels at a medium rate of 50Kbit s independent of number of channels used Inverse Multiplexer Scrambler When inverse multiplexer management is enabled the equipment can...

Page 68: ...inverse multiplexing is disabled the screen shown below will be presented DataCom Telematica DM16E1 Multiplexer local status ports Bridge Port Status Slot 5 Port 01 Ethernet Bridge Operation Active Ethernet Link Off Speed 4xE1 ENTER Refresh ESC Exit PgUp Pre V ious Card N ext Card PgDn The Bridge status menu has the following indications Operation Indicates that the Bridge port is active present a...

Page 69: ... corresponding E1 G 703 channel Indicates that the channel is not being used as a Bridge or that there is no associated synchronization status 8 5 Bridge with packet ordainment Bridge Packet Sequencing The Bridge Packet Sequencing enables the sequencing and the fragmentation of transmitted packets on the Inverse Multiplexing mode assuring data delivery in a correct order and through an efficient w...

Page 70: ...n operate with or without inverse multiplexing Since the version 22 up to the most actual one it is supported by firmware As for the bridge card HW2 it is capable to execute the packet sequencing However as limitation is capable to operate with the enabled inverse multiplexing only Figure 27 Bridge card HW2 View Once it is inserted in the equipment the terminal identifies the card through the foll...

Page 71: ...37 or upper Download the firmware version 02 or upper with ordainment Procedures for changing the software from bridge HW2 to bridge HW1 Remove the bridge card HW2 from the satellite slot Download the firmware with version upper than the firmware 22 8 6 2 Cards and topologies supported by version with ordainment The equipment with operation over the software with ordainment can support the same ag...

Page 72: ...ed in this product 8 6 4 Interoperability between Bridge HW1 and Bridge HW2 The bridge HW2 is compatible with the HW1 in case of some specific configurations are set enabling its interoperability The following parameters should be set in order to connect the equipment with different bridge versions Bridge HW1 configuration Inverse Multiplexing Enable Bridge HW2 configuration Packet Sequencing Disa...

Page 73: ...ied as follows Static starting from routes added via terminal or via SNMP management A maximum of 10 static routes can be configured in each modem Dynamic following protocols RIP V1 and RIP V2 protocols for learning and activation of routes DM16E1 DM4E1 cards are able to translate local IP addresses into one global IP per interface NATP NAT PAT network address translation port address translation ...

Page 74: ...only applicable to WAN interfaces because the output of the Ethernet interface is always made available via the RJ45 connector located in the backplane of the equipment 9 2 WAN1 Port Physical Configurations The physical part of WAN1 always runs along with the management link and can be configured out of the E3 payload at a rate of 40kbit s or on one of the E1 channels available in the multiplexer ...

Page 75: ...to the one shown in that last screen with the exception that one of the devices should necessarily be set to pass through character Note that WAN2 set to Frame Relay always works as an end element Thus direct communication without an intermediate UNI Network element between two DM4E1 DM16E1 devices using Frame Relay is not possible The objective of this function is to allow Frame Relay access to c...

Page 76: ...ch is provided by the network is necessary Local V 35 Data are directed to the V 35 interface which is present in the backplane of the equipment In this configuration the transmission rate does not need to be configured and it depends only on the CT113 clock used in the interface input The same CT113 is used along with CT104 When this option is used interface V 35 should not be configured in the t...

Page 77: ...aces which are explained in the following items LAN Configuration Enabling and Ethernet interface IP WAN Configuration Protocol and enabling of WAN interfaces From this screen it is also possible to monitor the link status Router Configuration IP address of WAN and DLCI Frame Relay protocol interfaces Configuration of static routes and dynamic routing protocols both are optional 9 4 1 Ethernet LAN...

Page 78: ...ry loss of the management link and of data which are in the tributary channel interface It is recommended that this configuration be defined prior to installation in order to avoid the interruption of data transmission In the last lines of the screen the link status for both WAN interfaces is presented Possible values for WAN1 status and for WAN2 configured as Frame Relay are only UP and DOWN refe...

Page 79: ...nu General Router Configuration Selection of used routing dynamic protocols NAT and local route protection WAN1 IP Address Set the IP address to WAN1 Static Routes Setup Visualization of static routes set in the equipment Gateway default IP address and interface without destination route to send routing packets DataCom Telematica DM16E1 Multiplexer local Net router Router Configuration PPP 1 Gener...

Page 80: ... individually via the interface Protect Local Routes When enabled along with RIP it avoids Intranet routes to be informed to external hosts Internet It is effective only when RIP is enabled LAN Talk WAN1 Talk WAN2 Talk Selects the protocol to be used to activate routes via the routing interfaces Options include RIPV1 RIPV2 or none LAN Listen WAN1 Listen WAN2 Listen Selects the protocols through wh...

Page 81: ...the destination sub net Any router interface WAN1 WAN2 or Ethernet can be chosen The interface should be active DLCI Valid only for WAN2 with Frame Relay Identifies the virtual circuit used for a specified route DLCI 0 zero should be used for WAN2 configured as PPP and for other interfaces Sub Net Address Mask Address of the destination sub net IP masking should identify the destination net univoc...

Page 82: ...uld remain set to 0 zero Reconfiguration of the gateway default parameter leads to resetting and consequently to temporary interruption of services DataCom Telematica DM16E1 Multiplexer local Net router gateway Gateway default Configuration Ip Address 176 18 40 254 Interface Wan2 Dlci 0050 ENTER Return and Save ESC Return without Saving 9 4 8 WAN2 PPP Interface Configurations If the protocol confi...

Page 83: ...cuits 4 Advanced Frame Relay Configuration 5 Static Routes 6 Gateway Default Option Specific options for WAN2 set to Frame Relay include WAN2 Virtual Circuits Similarly to WAN2 IP configuration defines IP address and mask for up to 5 DLCIs in a Frame Relay interface Advanced Frame Relay Configuration Configures specific parameters for the maintenance of the Frame Relay link 9 4 10 Frame Relay Virt...

Page 84: ...uits ESC Return to Previous Menu Options A dd D elete and E dit allow to add maximum of 5 circuits delete or edit virtual circuits respectively It is necessary to configure at least one DLCI for Frame Relay interface Deleting all circuits is not allowed Option V iew Network Virtual Circuits allows the user to visualize the DLCIs offered by Frame Relay network UNI Network The screen is identical to...

Page 85: ... Polling counter 006 N392 Error threshold 03 N393 Events counter 04 ENTER Return and Save ESC Return without Saving T391 Polling timer Time in seconds elapsed between packets of network verification N391 Polling counter Number of packets of network verification between two status packets N392 Error threshold Number of errors allowed at every N393 events N393 Event counter Size of the event window ...

Page 86: ...cated on the equipment rear panel Its configuration indicates whether a charge of 75Ω will be inserted or not in the external clock input When set to ON the external clock input presents an impedance of 75Ω When set to OFF the input impedance is high allowing for the connection of a clock source to several devices simultaneously For further information see item 12 3 10 4 V 35 and V 36 V 11 Interfa...

Page 87: ...nection of the coaxial cable shield to the frame ground For further details see item 7 9 10 6 Restricted Use Straps The main card has two straps E14 e E15 which are restricted to use in factory tests They should always be kept in position 0 2 so as to allow for the adequate functioning of the equipment The only way to access these straps is by removing their cover ...

Page 88: ...n one receiver is taken off the hook all the others will ring and the first receiver to answer will communicate with the caller while the others will be inoperative 11 1 Specifications of the Voice Channel Type of interface 2 wires Maximum level 2dBm Maximum wavelength 100 meters Voltage for detection of off the hook status 10mA Nominal voltage of off the hook 20mA The voice channel is only availa...

Page 89: ...ponding input pin 8 for ext alarm1 4 for ext alarm2 and 9 for ext alarm3 can be connected at 48V For this condition to be valid it is necessary to connect the signal ground to the frame ground see item 10 1 12 2 Alarm Outputs DM16E1 DM4E1 cards are provided with a relay in order to generate alarms The pinout in the DB9 connector is shown in Table 17 In an alarm situation or in case of power failur...

Page 90: ...rt Once all the alarming conditions are solved the alarms must be reset If a condition is not solved the alarm led will not turn off However there may be a change in the condition of the alarm from high to low priority according to the remaining alarming conditions 12 3 Input of External Clock The DM16E1 DM4E1 cards are provided with a IEC169 13 or BNC connector on the rear panel for the connectio...

Page 91: ...rds E3 1 Loss of aggregate signal 34 368kbit s Generates 1 Sends alarm 1 Generates AIS 1 Does not generates AIS Generates AIS Loss of synchronization in aggregate Generates 1 Sends alarm 1 Generates AIS 1 Does not generates AIS Generates AIS Indication of remote alarm Generates Does not answer Does not generates AIS Does not generates AIS Does not generates AIS Demux Failure in supply source Gener...

Page 92: ...ems By 5 elements can be used management and rate according to the availability More than 5 elements it is recommended the DMLAN IP management Between 7 and 14 elements it is recommended DMLAN IP management over 2M The maximum limit to the DM4E1 DM16E1 equipment in a ring is 14 elements 13 1 Remote Management The DM16E1 DM4E1 multiplexers can be managed by or manage other DM16E1 DM4E1 remotely In ...

Page 93: ...strings public and private The manager s IP address for traps receiving should be set too in order to avoid data loss Moreover the SNMP SET operation qualification can be also changed The default setup for this parameter is enabled The community parameters and the SETs qualifications can be configured by the terminal port only due to security issues 13 3 1 Setup via SNMP The parameters related to ...

Page 94: ...th a TFTP server so that the software used for transference should be a TFTP client In addition the transfer should be binary with packets of 512 bytes Transference may be either through the Ethernet link or through the PPP link In Band There are several application programs that are able to perform TFTP client tasks However below we will explain the steps that are necessary in order to carry out ...

Page 95: ...smitted file and then starts the upgrade The download for software upgrade should be made in a binary and continuous way The terminal should be configured to 9600bit s without flow control 1 stop bit and without parity bit When configuration is done with Windows 2000 it is recommended not to use the HyperTerminal as it presents some functional problems on this platform Therefore the use of Tera Te...

Page 96: ...wer with automatic selection and hot swapping it is enough to define if the equipment will operate with a redundant power supply or not Management Analyze if management will be local with remote configuration of other devices in band Define which devices will be managed directly via SNMP and which ones will be managed remotely Access points Ethernet or Frame Relay PPP in band must be available for...

Page 97: ...remote bridge The V 35 and routing ports may also be mapped to any E1 channel from the E3 aggregate while maintaining normal functionality of the 4 tributary E1 G 703 ports 15 4 Point to Point Topology Devices are factory preset for point to point topology so they do not need any additional settings when only tributaries E1 G 703 are used Aggregate 1 is considered the main link and Aggregate 2 is ...

Page 98: ... opposite direction This topology does not allow monofiber interfaces because the TX of a given card is connected to one device and the RX is connected to another one This also implies that all cards in each link must be identical When optic aggregates are used it is possible to have ring sections with extended range cards Figure 29 Example of bidirectional ring with Regular Ring topology In Cross...

Page 99: ...ng monofiber Figure 31 Connections in Regular Ring topology Figure 32 Connections in Cross Ring topology All devices should connect automatically if all connections are done correctly Use the terminal connector for configuration changes and to check the status of local or remote devices Refer to chapter 3 for additional information about configuration using the terminal port SNMP management is det...

Page 100: ...nto independent connections allowing the use of 2 fiber cards monofiber cards and electric interfaces e g for radio links Figure 34 Connections in In Line topology All devices should connect automatically if all connections are done correctly Use the terminal connector for configuration changes and to check the status of local or remote devices Refer to chapter 3 for additional information about c...

Page 101: ...ert facility The device connected to the E3 tributary is inserted in a ring with regular ring topology being able to share 2M channels with other devices contained in the ring Management will be able to remotely configure the device that is directly connected to the ring The device connected to the E3 tributary must be configured directly This configuration is suitable to three or more devices It ...

Page 102: ...sary When connecting the aggregate be careful to connect TX to RX when using two fibers and 1310 nm to 1550 nm cards when using monofiber All devices should connect automatically if all connections are done correctly Use the terminal connector for configuration changes and to check the status of local or remote devices Refer to chapter 3 for additional information about configuration using the ter...

Page 103: ... the interface 15 14 Routing Configurations can be done from local or remote devices and may be modified in the field However it is advisable to make initial adjustments prior to installation If the default gateway is set to operate with PPP or Frame Relay it is recommended to set it up as soon as possible because these configurations require a system reset Devices are factory preset as follows LA...

Page 104: ...N port directly managed via WAN port in band remotely managed via another equipment in band remote management or not managed If locally managed via LAN or WAN IP and sub mask addresses must be set In case the WAN is configured as Frame Relay DLCIs must also be set For a WAN the aggregate channel used must be set as well These configurations allow the management network to access the equipment If P...

Page 105: ... may be inserted or removed while the equipment is operating hot swap If the backup option is being used errors in tributary data will be temporary The equipment may run by two redundant power supplies main and backup Power input may be run from 93 to 250 Vac or 36 to 72 Vdc with automatic selection The backup power unit is identical to the main one and it is supplied separately The backup configu...

Page 106: ...Phone 55 51 3358 0100 Support 55 51 3358 0122 Fax 55 51 3358 0101 www datacom ind br ...

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