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APPENDIX C: E&M Voice/Fax Interface Module

C36

E17

4-wire

Operation

2-wire

Operation

Detector

-48V

Detector

GND

E14

E15

PBX

E&M Interface Module

Strapped for Type II

E16

-36V

Figure C-5. E&M Type II Interface Connection.

Summary of Contents for Multiserver 500

Page 1: ...eek Call 724 746 5500 or fax 724 746 0746 Mailing address Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Web site www blackbox com E mail info blackbox com CUSTOMER SUPPORT INFORMATION MARCH 1996 MX400A MX404C MX401C MX406C MX402C MX407C MX403C MX410C Multiserver 500 MULTISERVER 500 EXE PO IS TD RD LS RS VA TM ...

Page 2: ... a commercial environment Operation of this equipment in a residential area is likely to cause interference in which case the user at his own expense will be required to take whatever measures may be necessary to correct the interference Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment This digital appa...

Page 3: ...MULTISERVER 500 2 Trademarks AT T is a registered trademark of American Telephone and Telegraph Company UL is a registered trademark of Underwriters Laboratories Incorporated ...

Page 4: ...cking the Multiserver 500 15 3 2 Installing the Multiserver 16 3 2 1 Selecting an Installation Site 16 3 2 2 Cable and Power Connections 16 3 3 Setting the Composite Transmit Clock 17 3 4 Installing the Voice Fax Interface Module 18 3 5 Setting the Time and Date 19 Chapter 4 Using the LCD and Keypad 21 Chapter 5 Using the Command Port 28 5 1 Factory Defaults 28 5 2 Connecting Asynchronous Terminal...

Page 5: ...ce Module 63 B 1 Connectors on the Back Panel 64 B 2 Strapping 66 B 3 Removing or Replacing the Module 67 B 4 Specifications 67 Appendix C E M Voice Fax Interface Module 68 C 1 Differences Between Models 68 C 2 Telephone Interface Connectors 69 C 3 Connecting the Telephone Interface Cable 69 C 4 E M Lead States 71 C 5 Connection Diagrams 71 C 6 Strapping 75 C 7 Removing or Replacing the Module 76 ...

Page 6: ...Back to Back Hookup 48 7 2 Tests in the Diagnostics Menu 49 7 3 Local Data Loopback Test 51 7 4 Local Composite Loopback Test 52 7 5 FXO and E M Voice Fax Connections 52 7 6 Setting Up a Remote Composite Loopback Test 55 7 7 Setting Up a Remote Data Loopback Test 56 A 1 A Typical FXS Application 58 A 2 Connectors on the Back Panel of the FXS Interface Module 59 A 3 Wiring of the Connectors on the ...

Page 7: ...rossover Cable 90 F 8 RS 530 to X 21 DCE Crossover Cable 91 F 9 RS 232 to DTE Straight Cable EDN16C xxxx MF 92 F 10 V 35 to DTE Straight Cable EHN071 005M 93 F 11 RS 530 to RS 530 DTE Straight Cable 94 F 12 RS 530 to RS 449 DTE Straight Cable 95 F 13 RS 530 to X 21 DTE Straight Cable 96 Tables 1 1 Allowable Rate Combinations 8 5 1 Impedance Strapping Requirements 32 6 1 LED Indicators 42 C 1 E M L...

Page 8: ...ook or idle active voice fax traffic Maximum Rate Composite rate minus overhead Async Channel Data Rates 1200 bps to 57 600 bps Data Bits 7 or 8 data bits plus 1 parity bit Parity Space mark even odd none Stop Bits 1 1 5 and 2 per character Flow Control RTS CTS and X ON X OFF must be configured the same way at each end EIA Controls 4 full duplex control signals supported Voice Fax Channel Interfac...

Page 9: ... 9200 14400 1200 14400 9600 2400 14000 3600 14000 4800 14000 7200 14000 9600 14000 19200 1200 14000 14000 2400 14000 3600 19200 4800 19200 7200 19200 9600 19200 12000 19200 14400 19200 Composite Sync Data DBA Max Maximum Rate Rate Sync Rate Async Rate 38400 1200 14400 28800 2400 14400 3600 19200 4800 19200 7200 19200 9600 19200 12000 28800 14400 28800 19200 33600 28800 38000 33600 38000 56000 1200...

Page 10: ...6400 56000 48000 64000 51200 64000 56000 71200 57600 71200 64000 71200 Indicators Self test EEPROM test local and remote data loopback tests and local and remote composite loopback tests Power Requirements 100 250 VAC 0 9A 50 60Hz Power Supply External provided with the Multiserver Size 11 25 L 8 5 W 3 H 29 22 8 cm Weight 3 4 lb 1 5 kg Operating Environment Temperature 32 to 114 F 0 to 45 5 C oper...

Page 11: ...tects fax signals the firmware switches into fax mode In this mode signals are demodulated into fax symbols and passed as data to the remote end At the remote end the symbols are remodulated to the correct standards A typical Multiserver 500 application is shown in Figure 2 1 2 2 Description of the Multiserver 500 Physically the Multiserver 500 is an assembly of printed circuit boards one data cha...

Page 12: ...n 11 MULTISERVER 500 EXE PO IS TD RD LS RS VA TM DC POWER CMD PORT IN CMD PORT OUT COMPOSITE DATA CHANNEL FXS FXS SG R T Figure 2 2 Multiserver 500 Front and Rear Views LCD DISPLAY KEYPAD FRONT VIEW REAR VIEW LED INDICATORS ...

Page 13: ... the voice fax interface module and the serial interface module Attached to the basic building blocks are the LCD display and power supply unit VOICE FAX VOICE FAX INTERFACE MODULE DIGITAL PROCESSING MODULE LED KEYPAD LCD RIBBON CABLE SERIAL INTERFACE MODULE DATA COMPOSITE COMMAND PORT AC POWER POWER SUPPLY UNIT Figure 2 3 Multiserver 500 Block Diagram ...

Page 14: ...rds that plug into the serial interface module The mux can accept both synchronous data ranging from 1200 bps to 72 000 bps and asynchronous data ranging from 1200 bps to 57 600 bps 2 4 2 VOICE FAX CHANNEL Depending on the type of telephone equipment or other analog equipment interfacing with the voice fax channel the voice fax channel conforms with one of three common types of signaling conventio...

Page 15: ...422 RS 422 X 21 composite interface RS 422 X 21 data interface Base unit MX400A 232 232 Two MX410C 422 Interface Cards MX400A 422 35 RS 422 X 21 composite interface V 35 data interface Base unit MX400A 232 232 MX410C 422 Interface Card MX410C 35 Interface Card MX400A 35 232 V 35 composite interface RS 232 data interface Base unit MX400A 232 232 MX410C 35 Interface Card MX400A 422 232 RS 422 compos...

Page 16: ...e equipment against the packing slip Verify that you have received the following The Multiserver 500 If applicable one modular cable for connecting your FXS or FXO interface module to telephone equipment One RJ 45 to DB25 adapter One 8 conductor modular cable for use with the adapter One power supply Appendix F contains wiring diagrams for the above cables You may use them to construct your own in...

Page 17: ...her end to the DCE device 2 Data Channel Interface Use a straight cable appropriate for your installation See Section F 2 Connect one end to the DATA CHANNEL connector and the other end to the DTE device 3 Telephone Interface Requirements vary with the type of telephone equipment you re connecting to and with the type of voice fax interface module installed in the Multiserver 500 Refer to Appendix...

Page 18: ...TION Once a pair of Multiserver 500s configured for external clocking have established communications the clocking rate provided from the link DCE device cannot be changed If the DCE rate is changed you must either cycle the power off and on on the Multiserver 500 or disconnect the link cable and then reconnect You can use two Multiserver 500s as a diagnostics tool Simply connect two Multiserver 5...

Page 19: ...lock rate Otherwise the system will lock up 3 4 Installing the Voice Fax Interface Module Normally the Multiserver 500 is shipped with the voice fax interface module already installed If it was shipped separately or if you need to change the existing module see Figure 3 3 and proceed as follows Tool Required Medium sized flat head screwdriver To install 1 Facing the rear of the Multiserver 500 pla...

Page 20: ...d slide it slowly toward you until it s free of its mating connector then slide it out of the Multiserver 500 3 5 Setting the Time and Date To set the time of day and date from the Command Port terminal enter U T hh mm ss set U D dd mm yy set Note that time and date are not stored in EEPROM non volatile memory and must be set again each time the Multiserver is powered up See Chapter 6 for addition...

Page 21: ...RST TIME 00 00 00 Set hours digits first Use up arrow to go forward use the down arrow to go backward When you re finished press right arrow to advance to minutes Set minutes digits next Use up down arrows Press right arrow to advance to seconds Set seconds digits last Use right arrow to return to main menu press down arrow press down arrow press down arrow press left arrow twice press down arrow ...

Page 22: ... wire applications voice quality may be improved by disabling NLP Parameters shown in bold are default values 4 Using the LCD and Keypad Silence Status Diagnostics Reset Configure Param Voice Channel Analog Interface Composite Link Data Channel Command Port Load From Save Set Time and Date Set Password Factory Default EEPROM Busy State Background Fax Mode NLP Mode Disable Enable On System Off Rege...

Page 23: ... output levels of your equipment to match the interfacing telephone equipment Parameters shown in bold are default values Signalling Format Operation Extra Gain Analog Interface Configure Param cont Ringing Frequency DC Pulsed DC AC 15 2 Wire 4 Wire None 7 25_Hz 50_Hz Input Gain Output Attenuation Ring Type Impedance 3 2 1 0 1 2 3 4 5 6 7 8 9 10 19 20 4 5 6 22 21 3 2 1 0 28 27 26 4 5 6 7 8 9 10 19...

Page 24: ... you select a Save and then a Reset Does not include parity bit Parameters shown in bold are default values Command Port Configure Param cont 1 2 1 5 Parity Stop Bits Data Bits Data Rate Flow Control Local Echo Device Number None Xon Xoff 0 8 Enable Disable 7 8 Auto 1200 2400 4800 9600 19200 None Even Odd Mark Space ...

Page 25: ...ontrol Data Rate Data Bit Stop Bits Parity 1 1 5 2 7 8 None Even Odd Mark Space 38400 57600 28800 19200 14400 9600 7200 4800 3600 2400 1200 Enable Disable RI DSR Control DCD Control CTS Control CTS RTS Delay On Off Link Status On Off Remote DTR On Off Remote RTS On Off Local RTS 125 ms 150 ms 100 ms 75 ms 50 ms 25 ms None None Xon Xoff CTS RTS see next page for parameters ...

Page 26: ...h Allocation Parameters shown in bold are default values Configure Param cont Data Channel cont Synchronous Rate Max Rate Transmit Clock Dynamic Bandwidth 1200 rate 2400 3600 4800 7200 9600 12000 14400 19200 28800 33600 38400 46400 48000 51200 56000 57600 64000 72000 maxrate Off Silence Hook Internal External Composite Link Internal Clock External Clock Clock Rate 7200 9600 14400 19200 38400 56000...

Page 27: ...m failed ram failed eeprom passed eeprom failed Remote Comp Local Comp Remote Data Local Data Comp Loop Data Loop Analog Interface Dash No H W Rev Type Serial Board Dash No H W Rev Type DSP Dash No S W Rev H W Rev Out Level Algorithm Rate Algorithm Ver Local On Off Hook Remote On Off Hook In Level I F Type PROM Verification PROM I D Receive Clock Transmit Clock EIA Signal Flow Control B0 CTS RTS D...

Page 28: ...CHAPTER 4 Using the LCD and Keypad 27 Main Menu cont Diagnostics Terminate Local Composite Remote Composite Local Data Remote Data Self Test EEPROM ...

Page 29: ... Port to configure and monitor the Multiserver 500 See Section 6 3 for default details 5 1 Factory Defaults The factory defaults of the Command Port are as follows Data Rate Automatic Baud Rate ABR Number of Data Bits 8 Parity None Number of Stop Bits 1 Flow Control None Device Number 0 Local Echo Enabled If your terminal meets all of the above parameters with the exception of device number includ...

Page 30: ...Channel Command Port Load From Save To Set Time Date Set Password Main Menu 1 2 1 5 Parity Stop Bit Data Bits Data Rate Flow Control Local Echo Device Number None Xon Xoff 0 8 Enable Disable 8 7 Auto 1200 2400 4800 9600 19200 None Even Odd Mark Space Figure 5 1 Reconfiguring the Command Port Parameters ...

Page 31: ...MD IN and CMD OUT Cable requirements and pinouts are detailed in Section 5 4 If your installation includes a single Multiserver 500 connect the asynchronous terminal to CMD IN You will need an RJ 45 to DB25 adapter to connect the cable to the asynchronous terminal NOTE In a single unit installation the device number must be left at its default value of 0 and you must strap the Multiserver 500 for ...

Page 32: ...ity autobaud no flow control and local echo enabled At least one unit must be set to 1 each of the other units may be set randomly to any number in the range of 2 through 8 as long as no two units have the same number 5 3 Impedance Strapping Multiserver 500 Unit 1 Cmd In Cmd Out Multiserver 500 Unit 2 Cmd In Cmd Out Multiserver 500 Unit 3 Cmd In Cmd Out Async Terminal Strap for High Impedance Stra...

Page 33: ...ver pins 2 and 3 To strap for high impedance termination position the jumper over pins 1 and 2 Impedance requirements are as listed in Table 5 1 J11 J10 E11 J9 J8 E4 E5 3 2 1 E5 Low Impedance 3 2 1 E5 High Impedance Figure 5 5 Location of Command Port Impedance Header E5 on the Serial Interface Module Table 5 1 Impedance Strapping Requirements Number of Multiserver 500s Strapping Requirements 1 St...

Page 34: ...ta Out Command Data In force to mark n c 22 8 20 7 3 2 5 4 To Terminal Modular Cable 1 2 3 4 5 6 7 8 CMD Port In Connector Multiserver 500 1 2 3 4 5 6 7 8 n c n c n c Ground Daisy chain Data In Daisy chain Data Out n c n c 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 Modular Cable CMD Port Out Connector To CMD Port in of next Multiserver 500 in daisy chain Legend Input to Multiserver 500 Output from Multiserve...

Page 35: ...nal follow the flowchart in Figure 5 7 Power Up Daisy Chain Command Port ABR Enter Ctrl C Enter Device Number Enter cr cr in quick succession Password Configured Enter Password Multiserver 500 Display Copyright c 1993 All rights reserved 1 2 3 Y N Y N N Y Figure 5 7 Flowchart for Accessing the Command Port ...

Page 36: ...e Command Port enter Remote command 1 2 3 N Y To Return to Local Command Port enter Exit command Enter Ctrl C Enter Exit Either Or Figure 5 7 Flowchart for Accessing the Command Port continued If daisychaining or reconfiguring Command Port enter Ctrl C to end session Otherwise enter exit ...

Page 37: ...d Sets parameters to factory default values or last saved configuration values Remote Accesses remote Command Port SAve Command to save modified configuration in EEPROM non volatile memory replacing the default parameters Command will take effect after unit is reset SHow Displays selected information such as status and statistics SYncport Configures parameters for the sync data port Unit Changes s...

Page 38: ...n the U S A or Canada input and output levels must be set to 0 dB In other countries follow the standards of the country wherein the equipment is used If there are no specific standards set the input and output levels of your equipment to match the interfacing telephone equipment Be sure to separate each command in the string by a space The parameters above become effective immediately when entere...

Page 39: ...25 150 in msec DCD ON OFF Remote follows remote RTS DSR ON OFF Remote follows remote DTR RI ON OFF Link follows link status Example DA TY SY RI OFF will set the data port type to synchronous and the ring indicator to off Be sure to separate each command in the string by a space To save the newly set parameters in EEPROM type SA cr DIAgnostics SElftest Initiates a self test EEprom Initiates a nonvo...

Page 40: ...ontrol and EIA signal status Example SH DATA Data Channel Status EIA SIGNAL Input UNA OFF B0 OFF RTS OFF DTR OFF Output DCD OFF RI OFF CTS ON DSR OFF for Synchronous Data Synchronous Tx Data Rate 56000 Rx Data Rate 56000 for Asynchronous Data Asynchronous data rate 9600 flow control OFF Time Displays current time Example SH T 02 59 37 VErsion Displays the current software revision Example SH VE So...

Page 41: ...6400 48000 51200 56000 57600 64000 72000 Tx clock Internal External DBA OFF SILENCE HOOK Example SY RA 38400 MAX 56000 DBA HOOK cr will set the sync channel minimum rate to 38 400 bps maximum rate to 56 000 bps and DBA dynamic bandwidth allocation will follow the on hook off hook state of the voice fax channel Be sure to separate each command in the string by a space To save the newly set paramete...

Page 42: ...ting data making telephone calls and sending fax messages 6 1 LED Indicators LED indicators are on the front panel of the Multiserver 500 as shown in Figure 6 1 Their functions are summarized in Table 6 1 6 Operation MULTISERVER 500 EXE PO IS TD RD LS RS VA TM KEYPAD LED INDICATORS LCD DISPLAY Figure 6 1 The Front Panel of the Multiserver 500 ...

Page 43: ...ansmitting data Off Data channel is not transmitting RD Receive Data Flickering Data channel is receiving data Off Data channel is not receiving data LS Local Speech On Speech signal from local telephone interface present Off No local speech present RS Remote Speech On Speech signal from remote telephone interface present Off No remote speech present VA Voice Active On Voice channel is active Off ...

Page 44: ...0 Ohms Ringing Type FXS 2 4 interrupted Ringing Frequency FXS 25 Hz Extra Gain E M 4 wire None CMDport Rate AUTO Data bit 8 Stop 1 Parity None Flow control None Echo Enable COMpositelink Clock External Rate 9600 DAtaport Type Synchronous CTS ON CTSDelay None DCD ON DSR ON RI Link status ASyncport Rate 1200 bps Data bit 8 Stop 1 Parity None Flow control None Echo Disable SYncport Rate 1200 bps Maxr...

Page 45: ...synchronous data channel when the voice channel is not in use When the voice channel is in use the synchronous data channel automatically drops down to the rate value a guaranteed value of bandwidth allocation Once the voice channel is no longer in use data channel bandwidth allocation returns to the maximum value There are two ways to define when the voice channel is in use silence and hook When ...

Page 46: ...XO Trunk Side Station Side PBX ST 123 ST 456 FXS I F Module Digital Proc Module Digital Proc Module E M I F Module LOCAL MULTISERVER 500 REMOTE MULTISERVER 500 FXS TO E M Station Side Trunk Side PBX ST 456 Figure 6 2 Telephone Calls from Local FXS Interfaces Lift telephone and speak when other party answers Lift telephone Wait for dial tone from PBX Dial 456 speak when other party answers Lift tel...

Page 47: ...LTISERVER 500 E M TO E M Station Side Trunk Side E M I X Module Digital Proc Module REMOTE MULTISERVER 500 8 ST 123 REMOTE PBX Station Side Trunk Side 8 ST 456 Figure 6 3 Telephone Calls from Local FXO or E M Interfaces Lift telephone at local station 123 Wait for dial tone from PBX Dial 456 Speak when other party answers Lift telephone at local station 123 Wait for dial tone Dial access code 8 Sp...

Page 48: ... is 400 bps for composite rates of less than 56 Kbps and 800 bps for composite rates of 56 Kbps and above 6 4 3 TO SEND A FAX MESSAGE Any voice application shown in Figures 6 1 and 6 2 works for fax transmission simply by replacing the telephone sets with fax machines Make sure both fax machines are powered up and programmed for auto answer Then 1 At the end from where you intend to initiate the f...

Page 49: ...f test during power up 7 1 Automatic Self Test This is a series of tests performed in the following sequence DSP Test Checksum Test RAM Test Composite Loopback Test Data Channel Loopback Test If the DSP test fails all LEDs will turn on and the unit will remain in this loop If any other test fails the TM indicator will flash and the nature of the problem will be displayed on the LCD 7 2 User Initia...

Page 50: ...opback test TErminate Terminate current test NOTE If you have selected the self test local and remote data loopback tests or local composite loopback test the test will stay on until you terminate it EEPROM and remote composite loopback are timer controlled tests and will terminate automatically when the time expires You cannot initiate another test while the present test is in progress To termina...

Page 51: ...2 EEPROM TEST To perform the EEPROM test from the asynchronous terminal connected to the Command Port connector enter DI EE cr To perform the EEPROM test from the LCD keypad follow this path Main Menu Diagnostics EEPROM NOTE Do not invoke any commands until the EEPROM test is completed The test will last approximately 5 seconds and the TM LED will be on for the duration of the test 7 2 3 SELF TEST...

Page 52: ...m for transmission to the remote end In addition the local composite loopback test verifies the proper operation of the local voice fax digitizer Test Setup and Signal Flow Depending on the voice fax interface module type installed in your Multiserver 500 the local composite loopback test may involve three different setups FXS E M and FXO Figure 7 4 shows the test setup and signal flow in a local ...

Page 53: ...X Station Side Trunk Side Multiserver 500 with E M Interface Module Access Code Access Code Figure 7 5 FXO and E M Voice Fax Connections Serial Interface Module Multiserver 500 Voice Fax Interface Module FXS Mux Composite Driver Digital Processing Unit Figure 7 4 Local Composite Loopback Test ...

Page 54: ...ocal composite loopback test as described in Section 7 2 Verify that the TM indicator light goes off Notes on FXO and E M Interfaces Figure 7 5 shows the voice fax connections for FXO and E M type voice fax interface modules data connections are not repeated If your Multiserver 500 is fitted with an FXO type voice fax interface module you must first dial the station number that connects to the Mul...

Page 55: ...r asynchronous Configure the asynchronous channel to match your terminal equipment Refer to Chapter 4 or Chapter 5 for configuration details 3 Connect a telephone set to the FXS connector on the voice fax interface module 4 Put the Multiserver 500 into remote composite loopback To do that a From the Command Port enter DI REMComp cr or b From the LCD keypad select from the Diagnostics menu as shown...

Page 56: ...erial Interface Module Local Multiserver 500 Voice Fax Interface Module FXS Mux Composite Driver Digital Processing Module Remote Multiserver 500 Mux Composite Driver Digital Processing Module Figure 7 6 Setting Up a Remote Composite Loopback Test ...

Page 57: ...ver 500 Voice Fax Interface Module Mux Composite Driver Digital Processing Module Remote Multiserver 500 Mux Composite Driver Digital Processing Module Serial Interface Module Voice Fax Interface Module Figure 7 7 Setting Up a Remote Data Loopback Test ...

Page 58: ...0 2 Configure the local data channel for asynchronous and configure the asynchronous channel to match your terminal equipment Refer to Chapter 4 or Chapter 5 for configuration details 3 Have the remote operator configure his data channel and asynchronous channel 4 Put the Multiserver 500 into remote data loopback To do this a From the Command Port enter DI REMD cr or b From the LCD keypad enter th...

Page 59: ...network Figure A 1 shows a typical FXS application For clarity the Multiserver 500 is represented by the FXS voice fax interface cards There are two versions of the FXS Interface Card MX406C FXS Standard Loop Start This model meets the safety requirements of North American regulatory agencies MX407C Enhanced FXS Loop Start This model meets the safety requirements of all European and North American...

Page 60: ...x channel to telephone equipment Connect one end of the cable to the FXS connector on the voice fax interface card Connect the other end to the telephone equipment If you are connecting to a punch block use the terminal block TB1 Use a cable with bare wire leads not included to connect the terminal block and the punch block The terminal block is fitted with a female plug that serves as a receptacl...

Page 61: ...e the female plug Then insert each cable lead into the cutout on the opening at the front of the plug and secure it at the top with a screwdriver see Figure A 4 Finally reinsert the plug in the terminal block After you make the connection install the connector cover Insert the right tab of the cover in the retaining slot of the voice fax interface card s 4 SG 3 2 R 1 T Insert Cable Lead Here Termi...

Page 62: ... Hz 16 dB Longitudinal Balance 200 to 1000 Hz 58 dB 1000 to 3400 Hz 48 dB Input and Output Level Adjustments If you operate your equipment in the U S A or Canada input gain and output attenuation are set at the factory to 0 0 dBm and must not be changed In other countries follow the standards of the country where the equipment is used Maximum Input and Output Levels 0 dBm Frequency Response Over t...

Page 63: ...MULTISERVER 500 62 Size 6 5 W 6 D 16 5 15 2 cm ...

Page 64: ...erver 500 equipment is represented by the interface modules There are two versions of the FXO Voice Fax Interface Module MX403C FXO Standard Loop Start This model meets North American regulatory agency safety requirements MX404C Enhanced FXO Loop Start This model meets all European and North American regulatory agency safety requirements B 1 Connectors on the Back Panel Appendix B FXO Voice Fax In...

Page 65: ...s 2 and 3 of J2 are connected respectively to pins 1 and 2 of TB1 see Figure B 3 In most applications use a modular cable included to connect the voice fax channel to telephone equipment see Figure B 4 Connect one end of the cable to the FXO connector on the voice fax interface module Connect the other end to your telephone equipment J2 FXO 1 2 3 4 1 2 3 4 TB1 T R SG CGND Chassis Ground Figure B 3...

Page 66: ...crewdriver We recommend that you color code the cable leads for easy identification Make the connection by first removing the female plug inserting each cable lead into the cutout on the opening at the front of the plug and securing it at the top with a screwdriver see Figure B 4 Finally reinsert the plug in the terminal block After you make the connection install the connector cover To do this si...

Page 67: ... by an RC network connected across the dial pulse relay U9 To disconnect the RC network remove strap E7 3 Dial Pulse Series Resistance This option selects one of two values of the series resistance in the dial pulse circuit 150 Ω or 50 Ω nominal The default value is 50 Ω To select the 150 Ω value move the strap from E9 to E8 4 Line Impedance Selection This option selects one of two line impedance ...

Page 68: ... a parallel network of a 0 12 µf capacitor and an 820 Ω resistor Standard Model Fixed at 600 Ω in series with a 2 15 µf capacitor Insertion Loss 2 dB nominal 1000 Hz End to End between Transmit and Receive of Port 1 and Transmit and Receive of Port 2 Example Port 1 is FXO LS port and Port 2 is FXS LS port Port Return Loss Echo Return Loss 22 dB Singing Return Loss 18 dB 200 to 3400 Hz 16 dB Longit...

Page 69: ...SB and SG are used There are five E M signaling formats defined Types I II III IV and V However only three formats are in common use today Types I II and V Type I is the most common type used in the United States while Type V is common throughout the rest of the world Type II was designed for compatibility with some AT T PBX types C 1 Differences Between Models There are two versions of the E M Vo...

Page 70: ...ian Wires used for this pur pose must be UL type CM 22 24 AWG 8 conductor 1 Remove the plug from the 8 pin terminal block 2 Use a cable with bare wire leads not included Insert each cable lead into the cutout at the front of the plug and secure it with a small flat head screwdriver at the top We recommend that you color code the cable leads for easy identification 3 Insert the plug which now inclu...

Page 71: ...rminal Block Back Panel of Interface Module Secure Cable Leads Here 8 Places Terminal Block Plug Right Tab Connector Cover 8 7 6 5 4 3 2 1 SB M E SGR1 T1 R T M E SG R1 T1 R T Connect to PBX Figures C 4 through C 6 Figure C 3 Connecting the E M Cable ...

Page 72: ...C 6 are simplified connection diagrams between the E M voice fax interface module and the PBX for signaling types I II and V As discussed earlier Types II and V are supported only by the MX402C Table C 1 E M Lead States Lead State Type I Type II Type V E output Idle Open Open Open Active SG Close SG SG M input Idle SG Open Open Active 48 V Close SB SG SG Signal Ground SB Signal Battery ...

Page 73: ...ER 500 72 C36 C36 E8 E17 T R T1 R1 T R T1 R1 4 wire Operation 2 wire Operation Detector E 48V Detector GND M E SG M E14 E15 1µf PBX E M Interface Module Strapped for Type I Figure C 4 Type I Interface Connection ...

Page 74: ...ce Module 73 C36 C36 E8 E17 T R T1 R1 T R T1 R1 4 wire Operation 2 wire Operation Detector E 48V Detector GND M E SG M E14 E15 1µf PBX E M Interface Module Strapped for Type II SB SB E16 36V Figure C 5 E M Type II Interface Connection ...

Page 75: ...1 T1 T1 R1 R T 4 wire Operation 2 wire Operation Detector E 48V Detector GND M E SG M E14 E15 1µf PBX E M Interface Module Strapped for Type II SB SB E16 36V Figure C 6 E M Type V Interface Connection E M Interface Module Strapped for Type V ...

Page 76: ... voltages present in the R and R1 leads 4 Strap E14 is used to shunt out the series resistor in the E lead in case the loop resistance is too high to trip the detector inside the PBX 5 Strap E15 is used for dial pulse correction it connects a 1 µF filter capacitor between the SG lead and ground 6 Strap E16 is used to shunt out the series resistor in the SB lead in case the loop resistance is too h...

Page 77: ... to 3400 Hz 16 dB Longitudinal Balance Up to 1000 Hz 58 dB 1000 Hz to 3400 Hz 48 dB Input and Output Level Adjustments If you operate your equipment in the U S A or Canada input gain and output attenuation are set at the factory to 0 0 dBm and must not be changed In other countries follow the standards of the country where the equipment is used Maximum Input Level 0 dBm Maximum Output Level Enhanc...

Page 78: ...e using X 21 special converter cables Refer to Appendix F for cabling details Both interface connectors are configured at the factory to signal level types specified with the order If you need to change the interface type of either or both connectors read the rest of this appendix WARNING To change interface types you must remove the top cover in order to gain access to the interior of the Multise...

Page 79: ... as necessary For example to configure the composite interface for V 35 move down the Interface Type column in Table D 1 to V 35 and check all columns along that row You will note that the Model MX410C V 35 daughterboard must be installed headers X3 and X4 must be removed and jumper E11 and E4 must be installed on pins 1 2 You will also find that the interface cable number required for this interf...

Page 80: ...APPENDIX D Changing the Data Interface Types 79 J11 J10 J9 E4 E5 J8 E11 3 2 1 E4 3 2 1 E4 1 2 3 E11 1 2 3 E11 A B X3 and X4 Figure D 2 Configuring the Composite Interface ...

Page 81: ...1 Removed Installed on pins 1 2 MX410C V 35 straight RS 530 Model EHN076 005M Removed Installed on pins 2 3 MX410C 422 straight RS 449 Model EHN074 005M Removed Installed on pins 2 3 MX410C 422 straight X 21 Model EHN072 005M Removed Installed on pins 2 3 MX410C 422 straight Table D 2 List of Configuration Items for the Data Channel Interface D 3 Replacing the Top Cover After you configure the int...

Page 82: ...APPENDIX D Changing the Data Interface Types 81 D J11 J10 J9 E4 E5 J8 1 2 3 E11 1 2 3 E11 C X2 and X5 E10 Figure D 3 Configuring the Data Channel Interface ...

Page 83: ...f the Multiserver 500 works in some interfaces but not in others the problem is due to the telephone interface 2 The problem may be in your equipment If the Multiserver 500 does not work with any telephone interface then it is most likely that the problem is in your Multiserver 500 To check your Multiserver 500 follow the test procedures outlined in Chapter 7 E 2 Equipment Attachment Limitations f...

Page 84: ...thority or electrician as appropriate CP 01 Part I Section 10 2 Notice The Load Number LN assigned to each terminal device denotes the percentage of the total load to be connected to a telephone loop which is used by the device to prevent overloading The termination on a loop may consist of any combination of devices subject only to the requirement that the total of the Load Numbers of all the dev...

Page 85: ...TA CHANNEL and CMD PORT interface connectors Refer to the diagrams if you intend to construct your own cables Cable length must not exceed 50 feet 15 meters Cabling for the voice fax channel depends on the type of interface module installed in the Multiserver 500 and is given in Appendixes A B and C F 1 Cables for the Composite Interface RS 232 to RS 232 DCE Pin assignments for the COMPOSITE and D...

Page 86: ... 5 18 24 15 6 25 17 22 25 PIN CONNECTOR MALE 25 PIN CONNECTOR MALE TO MULTISERVER COMPOSITE CONNECTOR TO DCE DEVICE BUSY EXTERNAL TX CLOCK RI DTR EXTERNAL RX CLOCK RX CLOCK TX CLOCK UNASSIGNED RLSD SIGNAL GROUND DSR CTS RTS RD TD GROUND PIN 1 Figure F 2 RS 232 to RS 232 DCE Crossover Cable EZ423 0015 ...

Page 87: ... 14 7 SIGNAL GROUND SER CLK TX B SER CLK TX A RI CTS PIN 13 PIN 1 DCE PIN 25 PIN 14 MULTISERVER 500 86 V 35 to DCE Pin assignments for the COMPOSITE and DATA CHANNEL connector configured for V 35 signal levels are shown in Figure F 3 Use a crossover cable with male terminations at each end See Figure F 4 RS 530 to RS 530 DCE Figure F 3 Pin Assignments for the V 35 COMPOSITE and DATA CHANNEL Connec...

Page 88: ... EXT B SER CLK TX EXT A SER CLK RX B SER CLK RX A RD B RD A SER CLK TXB SER CLK TXA TD B TD A E H C D F J K B SIGNAL GROUND BUSY IN RI RLSD UNASSIGNED RTS DTR DSR TO DCE INTERFACE SER CLK RX B SER CLK RX A SER CLK TX EXT B SER CLK TX EXT A TD B TD A SER CLK RXEXT B SER CLK RX EXT A RD B RD A SIGNAL GROUND RI BUSY IN RTS UNASSIGNED RLSD DSR DTR PIN 1 Figure F 4 V 35 to DCE Crossover Cable EHN070 00...

Page 89: ...n RS 530 DCE device See Figure F 6 RS 530 to RS 449 DCE Crossover Cable 2 14 3 16 8 10 4 19 18 21 DTE TSET B DTE TSET A RTS B RTS A RLSD B RLSD A RD B RD A TD B TD A 11 17 9 20 23 24 DTE TSET A DTER B DTER A DCE RSET B DCE RSET A DTE TSET B 6 22 15 12 25 TM DCE TSET B DCE TSET A DCER B DCER A 7 1 SHIELD SIGNAL GROUND PIN 13 PIN 1 DCE PIN 25 PIN 14 Figure F 5 Pin Assignments for the RS 530 COMPOSIT...

Page 90: ...LSD A RD B RD A TD B TD A DCE TSET B DCE TSET A RLSD B RLSD A RTS B RTS A TD B TD A RD B 24 11 17 9 DCE RSET B TO MULTISERVER COMPOSITE CONNECTOR TO DCE INTERFACE 17 9 20 23 6 22 7 1 24 11 6 22 20 23 7 1 SHIELD SIGNAL GROUND DCER B DCER A DTER B DTER A DCE RSET B DCE RSET A SHIELD SIGNAL GROUND DTER B DTER A DCER B DCER A DTE RSET B DTE RSET A RD A 16 PIN 1 PIN 1 Figure F 6 RS 530 to RS 530 DCE Cr...

Page 91: ...LE DB37 CONNECTOR P2 MALE DTE RSET B TT A DCE RSET B 2 14 3 16 4 19 6 22 8 10 6 24 4 22 13 31 12 30 7 25 RLSD B RLSD A DCER B DCER A RTS B RTS A RD B RD A TD B TD A RS B RS A TR B TR A RR B RR A SD B SD A RD B 17 9 17 35 TT B TO MULTISERVER COMPOSITE CONNECTOR TM TO DTE INTERFACE 18 21 20 23 24 11 1 7 5 23 11 29 8 26 1 19 SIGNAL GND SHIELD DTE TSET B DTE TSET A DTER B DTER A DTE RSET B DTE RSET A ...

Page 92: ... connect to an X 21 DCE device See Figure F 8 DB25 CONNECTOR P1 MALE DB15 CONNECTOR P2 FEMALE 2 14 3 16 8 10 4 19 24 11 4 11 2 9 3 10 5 12 6 13 TO MULTISERVER COMPOSITE CONNECTOR DTE TST B DTE TST A RTS B RTS A RLSD B RLSD A RD B RD A TD B TD A DCE RST B DCE RST A RLSD B RLSD A RTS B RTS A TD B TD A RD B RD A 7 1 8 1 SIGNAL GROUND SHIELD SHIELD SIGNAL GROUND TO DCE INTERFACE PIN 1 Figure F 8 RS 53...

Page 93: ... 4 5 6 7 8 11 15 17 18 20 22 24 25 1 2 3 4 5 6 7 8 11 15 17 18 20 22 24 25 25 PIN CONNECTOR MALE 25 PIN CONNECTOR FEMALE TO MUTISERVER DATA CHANNEL CONNECTOR TO DTE INTERFACE BUSY EXTERNAL TX CLOCK RI DTR EXTERNAL RX CLOCK RX CLOCK TX CLOCK UNASSIGNED RLSD SIGNAL GROUND DSR CTS RTS RD TD GROUND BUSY EXTERNAL TX CLOC RI DTR EXTERNAL RX CLOC RX CLOCK TX CLOCK UNASSIGNED RLSD SIGNAL GROUND DSR CTS RT...

Page 94: ... MALE TO MULTISERVER DATA CHANNEL CONNECTOR V 35 CONNECTOR P2 FEMALE 6 20 13 5 8 22 25 7 P S Y a R T V X U W E H C D F J K B TO DTE INTERFACE SER CLK TX EXT B SER CLK TX EXT A SER CLK RX B SER CLK RX A RD B RD A SER CLK TX B SER CLK TX A TD B TD A SIGNAL GROUND BUSY RI RLSD CTS RTS DTR DSR SER CLK TX EXT B SER CLK TX EXT A SER CLK RX B SER CLK RX A RD B RD A SER CLK TX B SER CLK TX A TD B TD A SIG...

Page 95: ... 22 2 14 3 16 4 19 5 13 6 22 DCER B DCER A CTS B CTS A RTS B RTS A RD B RD A TD B TD A DCER B DCER A CTS B CTS A RTS B RTS A RD B RD A TD B TD A 8 10 8 10 RLSD B TO MULTISERVER DATA CHANNEL CONNECTOR SIGNAL GROUND SHIELD TO DTE INTERFACE 17 9 15 12 20 23 24 11 18 21 17 9 15 12 20 23 24 11 DTE RSET B DTE RSET A DTE TSET B DTE TSET A DTER B DTER A DCE TSET B DCE TSET A DCE RSET B DCE RSET A DTE TSET...

Page 96: ...R A RLSD B 2 14 3 16 4 19 5 13 6 22 4 22 6 24 7 25 9 27 11 29 DCER B DCER A CTS B CTS A RTS B RTS A RD B RD A TD B TD A DM B DM A CS B CS A RS B RS A RD B RD A SD B SD A 8 10 13 31 RR B TO MULTISERVER DATA CHANNEL CONNECTOR RC SIGNAL GROUND TO DTE INTERFACE 15 12 17 9 20 23 24 11 18 21 5 23 8 26 12 30 17 35 DTE RSET B DTE RSET A DTE TSET B DTE TSET A DTER B DTER A DCE RSET B DCE RSET A DCE TSET B ...

Page 97: ...terminations to connect to an X 21 DTE device See Figure F 13 DB25 CONNECTOR P1 MALE DB15 CONNECTOR P2 FEMALE PIN 1 2 14 3 16 4 19 8 10 17 9 2 9 4 11 3 10 5 12 6 13 TO MULTISERVER DATA CHANNEL CONNECTOR DCE RSET B DCE RSET A RLSD B RSLD A RTS B RTS A RD B RD A TD B TD A S B S A I B I A C B C A R B R A T B T A 7 1 8 1 SIGNAL GROUND SHIELD SHIELD SIGNAL GROUND TO DTE INTERFACE Figure F 13 RS 530 to ...

Page 98: ...server 500 that includes voice or fax and synchronous or asynchronous data Composite loopback A diagnostic test that loops back the composite data May be local or remote Daisychaining A topology for connecting Multiserver 500 Command Ports together It allows multiple local Multiserver 500s to be controlled from a single asynchronous terminal Data loopback A diagnostic test that loops back the data...

Page 99: ...tie trunk side of a voice PBX Extra gain See maximum output level Fax facsimile Transmission of hardcopy images written typed or drawn material through the voice fax channel FX foreign exchange service A telephone service provided to a subscriber from a central office which is located outside the subscriber s exchange area FXO foreign exchange office A voice fax interface module that connects to t...

Page 100: ...put level A configuration option for an E M 4 wire voice fax channel Allows for a maximum output level of 7 dBm NLP Nonlinear processing a method used to suppress residual echo Off hook A line condition caused when a telephone handset is removed from its cradle On hook A line condition that exists when a telephone handset is resting in its cradle PBX private branch exchange A privately owned phone...

Page 101: ...ween pairs of leads Telco An Americanism short for telephone company Telephone interface The external equipment connecting to the voice fax interface module of the Multiserver 500 Telephone interface connector A termination on the voice fax interface module that connects the analog side of the voice fax channel to the telephone equipment such as a telephone set key telephone system or voice PBX Th...

Page 102: ...t matches the E M voice fax interface module with the PBX tie trunk In a 4 wire system the audio signal is transmitted over one pair of wires and received over the other pair In a 2 wire system the same pair of wires is used for both transmit and receive ...

Page 103: ... 47 FXO Voice Fax Interface Module 63 FXS Voice Fax Interface Module 58 Impedance requirements 32 Impedance Strapping 32 Installing 16 Interface modules 13 Interfaces 13 14 Key Telephone System 58 Keypad 21 43 LCD 13 21 43 LED Indicators 41 Local Composite Loopback Test 51 Local Data Loopback Test 50 Loopback tests 50 Models available 14 Options 14 Parameters 37 Part numbers 14 Power Supply 13 Pro...

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