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150-402-102-01, Revision 01

Installation

HRU-402 List 2

July 27, 1998

17

Figure 6.

Connecting the HRU-402 to a Maintenance Terminal

3

Configure the maintenance terminal to the following communication
settings:

•

1200 to 9600 baud (9600 baud is recommended)

•

Parity: None

•

8 data bits

•

1 stop bit

•

Hardware Flow Control set to None

•

VT Terminal Emulation

If using the Microsoft Windows terminal emulation program,
from the Settings, Terminal Preference menu, you must
deselect

Show Scroll Bars and Use Function, Arrow, and Ctrl

Keys for Windows.

«
...
23
24
25
26
27
...
»

Summary of Contents for HiGain HRU-402

Page 1: ...HIGAIN REMOTE UNIT PAIRGAIN TECHNOLOGIES INC ENGINEERING SERVICES TECHNICAL PRACTICE 150 402 102 01S SECTION 150 402 102 01 Model List Number Part Number HRU 402 2 150 1592 02...

Page 2: ...ned in this document is company private to PairGain Technologies Inc and shall not be modified used copied reproduced or disclosed in whole or in part without the written consent of PairGain Other pro...

Page 3: ...2 List 2 July 27 1998 iii USING THIS MANUAL Two types of messages identified by icons appear in the text Notes contain information about special circumstances Cautions indicate the possibility of equi...

Page 4: ...Using This Manual 150 402 102 01 Revision 01 iv July 27 1998 HRU 402 List 2...

Page 5: ...Inspecting Your Shipment 10 Installing the HRU 402 List 2 10 Installation Test 12 Front Panel Messages 13 Connecting to a Terminal Emulator 15 Using the Maintenance Terminal __________________________...

Page 6: ...ote DS1 Alarm RDA Option 46 Alarm Pattern Option ALMP Option 47 DS1 Line Code Auto Option 47 Functional Description 48 Operational Capabilities 48 Local and Line Powering 49 Simplex Sealing Current In...

Page 7: ...Status Screen for Non doubler Applications 24 Figure 12 Span 5 Status Screen for Four Doubler Applications 25 Figure 13 Set Clock Screen 27 Figure 14 System Settings Screen 28 Figure 15 Loopback Scre...

Page 8: ...Components 9 Table 4 HLU 231 List 8 Four Character Front Panel Messages 13 Table 5 Maintenance Terminal Navigational Keys 21 Table 6 Maintenance and Remote Terminal Menus 22 Table 7 Span Status Fields...

Page 9: ...wo unconditioned copper pairs over the full Carrier Service Area CSA range See the section titled Applications on page 3 for HiGain doubler and doubler compatible line units that can be used with the...

Page 10: ...ng current Lightning and power cross protection on HDSL and DS1 interfaces 784 kbps full duplex 2B1Q HDSL Transmission on two pairs DS0 blocking Compatible with PairGain 1 x 1 Protection Switching Sys...

Page 11: ...and 1 dB for each cable gauge change HiGain systems operate with any number of other T1 Plain Old Telephone Service POTS or other HiGain systems sharing the same cable binder group can be used with cu...

Page 12: ...402 102 01 Revision 01 4 July 27 1998 HRU 402 List 2 also be used with the following line and doubler units for four and five span applications HLU 231 List 8x HLU 319 List 5x HLU 388 List 8x HDU 409...

Page 13: ...uct Overview HRU 402 List 2 July 27 1998 5 PRODUCT DESCRIPTION Front Panel Figure 2 and Table 2 identify the remote unit front panel components Table 2 also describes the functions of the front panel...

Page 14: ...utton in again for five seconds or by the standard loopdown coded messages Also provides the ability to control NREM a DS1 Code LEDs Indications for DS1 code options B8ZS DS1 Code Option B8ZS Solid gr...

Page 15: ...loop Extraction Handle Handle used to remove the HRU 402 List 2 from the remote enclosure DS1 RCV Level LVL Switch Sets DS1 RCV level 0 Sets the DS1 receive level towards the CI to 0 dB 15 Sets the DS...

Page 16: ...R and Local Power LPWR are located at the back of the printed circuit board adjacent to the card edge connector as shown in Figure 3 For the sealing current option you can choose to either disable or...

Page 17: ...dicated by a CHREV message in the ALARMS line of the SPAN STATUS Maintenance screen Allows the flow of simplex sealing current over the HDSL pair towards the upstream unit The local power option LPWR...

Page 18: ...Product Support on page 58 for more information Your shipment should consist of One HRU 402 List 2 PairGain Technologies HiGain Remote Unit 402 List 2 technical practice INSTALLING THE HRU 402 LIST 2...

Page 19: ...te unit into the card guides for the desired slot then push the unit into the enclosure until it is seated in the card edge connector Figure 4 HRU 402 Installed in a Remote Enclosure 3 Push the unit i...

Page 20: ...back state Also verify if possible that the HLU displays the message NREM which also indicates that the HRU 402 List 2 is in loopback 3 Have the CO tester transmit a T1 test signal into the HLU and me...

Page 21: ...at the HLU CLOC Customer Local Loopback Signal from customer is looped back to customer at the HRU NREM NetworkRemote Loopback DSX signal is looped back to DSX at HRU SMJK Remote SmartJack Loopback Si...

Page 22: ...p 1 or Loop 2 The 3rd Doubler and either HRU or 4th Doubler multiplexers are trying to establish synchronization with each other on loops 1 or 2 of span 4 A5L1 or 2 Acquisition 5 Loop 1 or Loop 2 The...

Page 23: ...HDSL loops has been grounded BAD RT No response from HRU The HLU does not receive any response from the HRU Thus the HRUs integrity is questionable FRM Frame SF ESF UNFR NONE Defines the type of fram...

Page 24: ...ble is connected to the Craft port RS 232 DB 9 connector on the HRU 402 List 2 connect the other end of the cable to the 9 pin COM port RS 232 of the maintenance terminal Figure 6 The maintenance term...

Page 25: ...nal to the following communication settings 1200 to 9600 baud 9600 baud is recommended Parity None 8 data bits 1 stop bit Hardware Flow Control set to None VT Terminal Emulation If using the Microsoft...

Page 26: ...splay the login screen The initial remote unit session after power up is always Local Login Figure 7 shows the main menu of a local session The main menu heading HiGain HRU 402 Maintenance Terminal Ma...

Page 27: ...ate a RS 232 session This is necessary because a HiGain circuit can only support one RS 232 session at a time An active session at any module prohibits active sessions at all other circuit modules Fig...

Page 28: ...The HRU Maintenance Terminal menus allows the user to monitor multi span applications from the HLU to the HRU Figure 9 System Spans RRRRR EEEEEE M M OO TTTTTTT EEEEEEE R R E MM MM OO OO T E RRRRR EEEE...

Page 29: ...l keyboard to navigate within the HRU 402 List 2 Maintenance menus Table 5 Maintenance Terminal Navigational Keys Key Function Logs into the Remote Terminal menus Exits the current menu Updates a repo...

Page 30: ...nnected to the HLU 231 List 7B Allows system loopbacks to be initiated Loopback Menu on page 30 View Performance Data Provides access to submenus that allow you to view the Errored Seconds ES and Unav...

Page 31: ...the HRU The screen shows information about HDSL Loops 1 and 2 DS1 interface Loopbacks Alarms Local power Time and date From the Remote Terminal Main Menu type The Span Status screen displays HI GAIN...

Page 32: ...s to update the current values TIME 00 14 11 SPAN STATUS DATE 02 02 98 Circuit ID ALARMS NONE LOOPBACK OFF POWER LEVEL LOW HLU HRU HDSL 1 HDSL 2 HDSL 1 HDSL 2 cur min max cur min max cur min max cur m...

Page 33: ...to clear the current values 3 Press to update current values 4 Press to view the next available span TIME 00 14 11 SPAN 5 STATUS DATE 02 02 98 Circuit ID ALARMS NONE LOOPBACK OFF POWER LEVEL HIGH HDU4...

Page 34: ...than the 196 kHz loss INS Loss Indicates the approximate attenuation of the HDSL loop at 196 kHz It is generated by multiplying the pulse attenuation by 1 25 PPM Offset Indicates the relative offset...

Page 35: ...ting the seconds is optional 3 At the Date prompt enter the date mm dd yy by pressing the key The cursor defaults to the New Date field 4 Type to exit the Set Clock menu The system date and time is up...

Page 36: ...U connected to the remote unit 3 Type to set the default settings 4 Type exit and return to the previous screen Table 8 lists the System Settings fields and descriptions SYSTEM SETTINGS TIME 12 46 06...

Page 37: ...AUTO HIGH or LOW ZBTSI Indicates whether ZBTS is either On or Off An On setting tells the system that the ESF frame is operating in its Zero Byte Time Slot Interface ZBTSI mode An Off setting tells th...

Page 38: ...tus of DS0 blocked channels and identifies the channels that have been blocked using xx symbols underneath each blocked channel A None setting indicates no channels are blocked A BLK setting indicates...

Page 39: ...pback Screen Without Doublers 2 Type to disable loopbacks 3 Type for HLU network loop settings 4 Type for HRU network loop settings 5 Type for HLU customer loop settings 6 Type for HRU customer loop s...

Page 40: ...previous menu Table 9 lists the HRU 402 List 2 Loopback Field Messages and Descriptions LOOPBACK MENU TIME 00 03 33 DATE 02 02 98 CIRCUIT ID A DISABLE LOOPBACKS B NETWORK LOOP HLU NLOC M NETWORK LOOP...

Page 41: ...wards network NLOC Network Local Loopback Loopback at HLU local towards network CLOC Customer Local Loopback Loopback at HRU local towards CI CREM Customer Remote Loopback Loopback at HLU remote towar...

Page 42: ...DS1 HDSL 1 HDSL 2 HLU HRU HLU HRU HLU HRU 20 30 000 000 000 000 000 000 000 000 000 000 000 000 20 45 000 000 000 000 000 000 000 000 000 000 000 000 21 00 000 000 000 000 000 000 000 000 000 000 000...

Page 43: ...DU1 HDU2 HDU1 HDU2 08 00 000 000 000 000 000 000 000 000 000 000 000 000 08 15 000 000 000 000 000 000 000 000 000 000 000 000 08 30 000 000 000 000 000 000 000 000 000 000 000 000 08 45 000 000 000 0...

Page 44: ...ure 19 Performance History Screen for Non doubler Applications 2 Type to exit and return to the previous menu 3 Type to view the spans that are currently in use Time 00 16 55 7 DAY HISTORY CIRCUIT ID...

Page 45: ...RU 01 26 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 01 27 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 01 28 00000 00000 00000 00000 00000 00000...

Page 46: ...typing Figure 21 Alarm History Screen for Non doubler Applications 2 Type to exit the previous menu 3 Type to clear the current values 4 Type to update the screen Table 10 lists the Alarm History fie...

Page 47: ...6 threshold crossing Current condition number of alarm Span1 LOSW HDSL1 First and last instance of LOSW on HDSL1 Current condition number of alarms Span1 LOSW HDSL2 First and last instance of LOSW on...

Page 48: ...menu 2 Type to clear the current values 3 Type to update the values 4 Type to view the next span View System Inventory The System Inventory screen allows you to view the model number list number and s...

Page 49: ...ilable NA All detected modules are fully identified Whenever the line unit loses sync with Span 1 the product types are replaced by the NA label until sync is reestablished and each module can in turn...

Page 50: ...SLIM one half 400 Dimensions Height 5 6 in 14 22 cm Width 0 7 in 1 7 cm Depth 5 6 in 14 22 cm Weight 1 lb 2 oz Power Line powered consumption 3 1 W When connected to the following line units HLU 231 L...

Page 51: ...kbps 2B1Q full duplex Output 13 dB 0 5 dB 135 Line impedance 135 Line DC resistive signature 14 Start up time 15 seconds typical 30 seconds maximum DS1 Line impedance 100 Pulse output 0 dB RLEV 0 15...

Page 52: ...n 150 402 102 01 Revision 01 44 July 27 1998 HRU 402 List 2 CARD EDGE PINOUT DIAGRAM The HRU 402 List 2 occupies one slot in a remote enclosure The card edge pinout diagram for the remote unit is show...

Page 53: ...als to which they are connected The HRU 402 List 2 and its associated line units remove this limitation and become BPVT transparent by detecting and counting input BPVTs at each end and then replicati...

Page 54: ...in intervals as short as one second Alarms usually require the full 60 seconds or longer to clear depending on the frequency of the transient errors This BER option is always present in any line unit...

Page 55: ...Line Code Auto Option When the DS1 line code option is set to AUTO mode both the HLU and HRU 402 List 2 set their T1 output codes to the codes reserved at the opposite end of the T1 input AUTO mode f...

Page 56: ...ich comprise one HiGain system A block diagram of the HRU 402 List 2 is shown in Figure 25 The HRU 402 List 2 power supply converts the 90 to 200 Vdc power that is received on the simplex pairs or the...

Page 57: ...of the card edge connector Figure 24 on page 44 To set local or line power for the remote unit switch the local power LPWR switch S1 to ENA see Figure 3 for switch location When LPWR is set to DIS the...

Page 58: ...wers up and operates normally if it is within range to support line powering The 48V local power supply must have 110 mA output current capacity 5 2W to power each HRU 402 List 2 A Teltrend WPS 2005 W...

Page 59: ...it Ideally personnel performing loopback testing are in direct communication with each other in order to correlate messages displayed at both the HRU and HLU during the test The HRU 402 List 2 support...

Page 60: ...111110 HLU HLU HLU HLU CREM 6 in 7 HRU 412 5 IN 7 CLOC HRU 412 HDSL SPAN HLU HLU HLU HRU 412 4 in 7 HRU 412 5 IN 7 CLOC HRU 412 HRU 412 5 IN 7 CLOC HRU 412 HRU 412 5 IN 7 CLOC HRU 412 HRU 412 5 in 7 C...

Page 61: ...c loopback is required in order to present the all ones pattern to the CPE and at the same time to loop the signal being received from the network back towards the network This puts the HiGain system...

Page 62: ...this signal if the Code option is set to AUTO It indicates AMI or B8ZS if the Code option is set to either AMI or B8ZS respectively All of the HRU loopbacks towards the network NREM and SMJK are metal...

Page 63: ...merican Wire Gauge B8ZS Bidirectional 8 zero Substitution BDG Bridged BER Bit Error Rate BERT BIT Error Rate Threshold BPV Bipolar Violation BPVT Bipolar Violation Transparency CI Customer Interface C...

Page 64: ...Frame Data Link FRN Frame HCDS High Capacity Digital Service HDSL High bit rate Digital Subscriber Line HDU HiGain Doubler Unit HLU HiGain Line Unit HRE HiGain Remote Enclosure HRU HiGain Remote Unit...

Page 65: ...e Service RCV Receive RDA Remote DS1 Alarm RLEV Receive Level RLOS Receive Loss of Signal SAIS SmartJack AIS SCURR Sealing Current SF Super Frame S N Signal to Noise SPLB Special Loopback TEC Total Er...

Page 66: ...rectly by a Customer Service Engineer At other times a request for technical assistance is handled by an on duty Customer Service Engineer through a callback process This process normally results in a...

Page 67: ...ation Do not try to repair the unit If it fails replace it with another unit and return the faulty unit to PairGain for repair Any modifications of the unit by anyone other than an authorized PairGain...

Page 68: ...ence to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own ex...

Page 69: ......

Page 70: ...Corporate Office 14402 Franklin Avenue Tustin CA 92780 Tel 714 832 9922 Fax 714 832 9924 For Technical Assistance 800 638 0031...

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