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Содержание VA3450P Series

Страница 1: ...Racai Vadic VA3450P S G SERIES MODEM INSTALLATION OPERATION MANUAL 1J IJ J The Electronics Group Publication Number 18008 079...

Страница 2: ...e Any manual can be improved Our major source of feedback is you the person actually using the book Please tell us how we are doing by completing the attached card and mailing it to us Thank You Techn...

Страница 3: ...VA3450P S G SERIES MODEM INSTALLATION OPERATION MANUAL JANUARY 1982...

Страница 4: ...nearest RACAL VADIC Regional Service Center listed below before shipping any equip ment in for repair EASTERN REGION NORTHEASTERN REGION SOUTHWESTERN REGION CENTRAL REGION WESTERN REGION 301 459 7430...

Страница 5: ...valent information must be provided for each device 2 When trouble is experienced disconnect this equipment from the telephone line to determine if it is malfunctioning Ifthis equipment is determined...

Страница 6: ...can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures reorient the receiving antenna relocate the co...

Страница 7: ...0S Connections 2 7 VA3450G Connections 2 8 PREINSTALLATION CHECKS 2 9 INSTALLATION PROCEDURE 2 9 OPERATION 3 1 CONTROLS AND INDICATORS 3 1 OPERATING PROCEDURES 3 4 Manual Originate 3 4 Manual Answer 3...

Страница 8: ...witch A7 0 5 4 Auto Disconnect Received SPACE strap b 0 5 4 Send SPACE on Disconnect strap c 0 5 4 Terminal Interface Options 0 0 0 0 0 0 0 5 5 Data Timing switch B6 0 0 0 0 0 0 0 5 5 Character Length...

Страница 9: ...NTENTS cont d SUPPLEMENTAL INFORMATION 6 1 EQUIPMENT INTERFACES 6 1 Terminal Equipment RS232C Interface 6 1 TelCo Line Interface 6 5 VA3450P Interface 6 5 VA3450S Interface 6 5 VA3450G Interface 6 5 S...

Страница 10: ...e Equipment Required 2 2 VA871 Options Model Summary 2 2 Telephone Options 503C 2503C 2 2 Front Panel Switches 3 2 Front Panel Indicators 3 3 VA3450 Series Options 5 9 RS232C DTE Interface Connector 6...

Страница 11: ...dem with 503C or 2503C Telephone 2 7 Figure 2 6 G Series Modem Leased Line 2 8 Figure 3 1 Front Panel Display 3 1 Figure 4 1 Test Switch Locations 4 3 Figure 4 2 Test Switch Functional Diagram 4 3 Fig...

Страница 12: ...03 and RACAL VADIC VA3400 technologies to provide full duplex asynchronous operation at data rates from 0 to 300 bps and full duplex synchronous or asynchronous operation at 1200 bps Selection of oper...

Страница 13: ...ive user diagnostics including local and remote test Analog and Digital Loopback capability micro processor based design features automatic self test 8 element diagnostic display on front panel for ra...

Страница 14: ...ave been dam aged or parts are missing immediately notify the nearest RACAL VADIC sales office The VA3450 series modem is supplied with an attached telephone interface cable and power supply The basic...

Страница 15: ...code Table 2 2 VA871 Options Model Summary Model No Description VA871AA Dataset Control Rotary Dial VA871BA Dataset Control Touch Tone Dial VA871AM Telset Control Rotary Dial VA871BM Telset Control To...

Страница 16: ...Voice Phone Connection Figure 2 1 shows modem con nections when used with a standard voice telephone This configuration may be used for manual originate manual or automatic answer operation with atte...

Страница 17: ...ended disconnect if the VADICphone is connected for dataset control VA871AA BA the modem will operate in manual origi nate automatic answer modes with either attended or un attended disconnect See VA8...

Страница 18: ...ating modes available in this configuration are identical to those described under the previous VADIC phone connection See Table 2 3 for phone options RJ41S RJ45S Data Jack TeiCo supplied 503C 2503C T...

Страница 19: ...pli cation the modem may also be connected without a tele phone as shown in Figure 2 4 Mates with RJllC Voice Jack or RI41S RJ45S Data Jack TeiCo supplied To 110 V ac outlet VA3450 06 Figure 2 4 P Ser...

Страница 20: ...et control the modem will operate in manual originate man ual answer modes only with attended disconnect if the phone is connected for dataset control the modem will operate in manual originate automa...

Страница 21: ...via the VA881 adapter as shown in Figure 2 6 The adapter s red and green wires connect to ring and tip of the telephone line respectively the black and yellow wires are not used NOTE For leased line o...

Страница 22: ...cover plate screw 2 Connect RS232C interface cable from data terminal equipment DTE to 25 pin EIA connector on rear of modem 3 Connect telephone interface cable to TelCo connection block Prior to con...

Страница 23: ...ation of each front panel control and indicator The operation of each switch is described in Table 3 1 and the function of each indicator is described in Table 3 2 Two test switches located on the rea...

Страница 24: ...ode and replace the telephone handset during data communication Be sure to set switch back to either VO or MA when data transfer is complete to avoid unnecessary telephone charges VO VOICE position Se...

Страница 25: ...transmit Data Set Ready Control signal from modem to terminal equipment Indicates modem is connected to telephone line during normal operation Flashes during test Data Terminal Ready Control signal f...

Страница 26: ...e indicators is shown as e ON FLASHING BLINKING 0 OFF DEPENDS ON SPEED SELECTED To originate a call proceed as follows 1 Set speed select switch HS on front panel to proper speed for remote modem type...

Страница 27: ...up telephone Immediately activate Force Answer switch FA by pull ing the switch forward for approximately 3 seconds then releasing When the modem connects to line front panel indicators will display t...

Страница 28: ...owing TXD RXD HS CTS DSR DTR Rl CXR ctct eeeoe VAJ450 14 2 The modem will automatically disconnect from line at end of call when the remote modem disconnects if Loss of Carrier Disconnect option is en...

Страница 29: ...o test switches located on the rear panel of the modem This section describes the location and operation of the test switches then presents a brief overview and a step by step procedure for performing...

Страница 30: ...ed select switch is set to the high speed HS position selecting DLB on the local modem initiates a remote test command to the far end modem Assuming that the far end modem can respond to a remote test...

Страница 31: ...VA3450 t6 Figure 4 1 Test Switch Locations HS DLB OFF I ST OFF TXD 1 either position LOCAL MODEM ALB OFF VAJ450 17 Figure 4 2 Test Switch Functional Diagram 4 3...

Страница 32: ...rminal equipment interface with data from the terminal End To End Self Test which checks operation of the data channel from both ends simultaneously using indepen dent test signals generated at each e...

Страница 33: ...eration of the far end modem If remote modem appears to operating properly perform End To End Self Test procedure to isolate direction of failure then go to step 6 5 Initiate Remote Digital Loopback D...

Страница 34: ...usied out An internal test signal is applied to the modem trans mitter and the transmitter output is looped back into the receiver DTR Data Terminal Ready is forced ON within the modem CTS Clear To Se...

Страница 35: ...y the following TXD RXD HS CTS DSR DTR Rl CXR eeeo eoe VA 34 50 19 4 If front panel display is correct set test switches to OFF set speed select switch to low speed position and repeat test Front pane...

Страница 36: ...ead of the internal test signal see Figure 4 4 Characters keyed from the terminal are modu lated by the transmitter looped back to the receiver and demodulated then returned to the terminal CTS to the...

Страница 37: ...osition and set ST OFF switch to OFF position 3 Verify that front panel indicators display the following TXD RXD HS CTS DSR DTR Rl CXR ooeecteoe VA3 450 21 4 If front panel display is correct type mes...

Страница 38: ...the line connection to the op posite end of the link decoded in the remote receiver and checked for errors Simultaneously an internal test signal is applied to the remote modem transmitter and sent th...

Страница 39: ...n remote modem 3 Verify that front panel indicators display the following at both modems TXD RXD HS CTS DSR DTR Rl CXR eeeocteoe VA 34 50 23 4 If front panel displays are correct set test switches to...

Страница 40: ...e en abled in the far end modem When this test is initiated the following conditions are created An internal test signal is applied to the local modem transmitter and the local modem receiver is conne...

Страница 41: ...l indicators on local modem dis play the following TXD RXD HS CTS DSR DTR Rl CXR eeeocteoe VA34 50 25 4 Ask remote operator to verify that front panel indicators on remote modem display the following...

Страница 42: ...ted by the local transmitter looped through the far end modem and returned to the local terminal via the receiver Remote Digital Loopback Data Test may be initiated from the local modem as described p...

Страница 43: ...D HS CTS DSR DTR Rl CXR ooeecteoe VA3450 28 4 If front panel display is correct type message on termi nal keyboard and verify that message prints correctly on terminal display If message is correct te...

Страница 44: ...FF position most of the remaining option switches and straps are ignored by the internal microprocessor and the follow ing option settings are selected Option Name Attended Unattended Disconnect Respo...

Страница 45: ...n the small catch while pulling upward gently on the board When the board is released from each standoff gently pull the upper board loose After checking the options selected on both boards reas sembl...

Страница 46: ...peration This option selects the proper receiver dynamic range for leased line and switched network applications The 0 to 35 dBm setting is used for leased line the 13 to 48 dBm setting for switched n...

Страница 47: ...position then returned to either the VO or MA position If an optional data telephone dataset control only is used the modem connects to line when the telephone is hung up The modem will automatically...

Страница 48: ...ial Clock Transmit to the interface for applications where the terminal provides a 1200Hz transmit clock Used only for high speed synchro nous operation This option phase locks Serial Clock Transmit t...

Страница 49: ...out go off hook only provided that Data Terminal Ready DTR pin 20 if OFF If DTR is turned ON while pin 18 is ON the modem will also enter ALB local test 2 If the second setting is selected interface...

Страница 50: ...test DLB If enabled RXD is sent to the terminal equipment at the receiving end during DLB If disabled RXD is held at constant MARK during DLB This option is used to turn ON Data Set Ready DSR in test...

Страница 51: ...1165 VA3450 02 D D II SNA I K1 ab c D SWB I II I 0 II MJa 0 T1 I M9 Ii c J 0 c J LJ M32 c J I 0 W M40 I I M10 M19 Y1 M28 33 0 c J r J Ir J c J I 0 0 I M13 aa r J I I ad 1 M29 l __ _ I MS c J II pq II...

Страница 52: ...OFF P S Disabled ON G Auto Disconnect Loss of Carrier A7 Enabled ON P S G Disabled OFF Remote Test DLB Select B1 Remote DLB ON P S G Local DLB OFF Force Data Terminal Ready B2 Forced ON G Controlled b...

Страница 53: ...P S G Disabled IN OUT External Transmit Clock j Connected IN Disabled OUT P S G Terminal Control of Data Rate k Controlled via pin 23 IN Disabled OUT P S G Signal Common Reference m Connected to Chas...

Страница 54: ...IN P S G 4KROM IN OUT Top Board 81165 AmQlitude Equalizer Wl Enabled ll J Disabled OUT P S G Phase Equalizer wz Enabled ll J Disabled OUT P S G Mfg Test Equalizer ByQass W3 Test flat response ll J No...

Страница 55: ...n MARK 3 to 25 V SPACE 3 to 25 V 3 RXD Received Data Demodulated serial data from modem receiver to terminal equipment active when the CXR Carrier Detect signal is ON Held in MARK condition when CXR i...

Страница 56: ...Control option is enabled SCT is phase locked to SCR If the Transmit Clock Select is set to external SCT is phase locked to SCTE 16 Not used 17 SCR Serial Clock Received Timing signal from mo dem to...

Страница 57: ...call See Terminal Control of Data Rate option in Section 5 24 SCTE External Serial Clock Transmit Optional tim ing signal from terminal equipment to modem that clocks transmitted data as described pr...

Страница 58: ...on Designation 101 Chassis Ground 103 Transmitted Data 104 Received Data 105 Request To Send 106 Clear To Send 107 Data Set Ready 102 Signal Common 109 Carrier Detect 12 Vdc through 1 kohm test 12 Vdc...

Страница 59: ...egulations Tables 6 2 and 6 3list pin assignments for the RJllC and RJ41S connectors respectively The VA3450S cable is terminated in an 8 position connector that mates with a USOC RJ41S or RJ45S data...

Страница 60: ...erface Signal Definitions Mnemonic Signal Name Function R Ring Connection to one side of telephone line T Tip Connection to other side of telephone line MI Mode Mode indication from Indicator voice da...

Страница 61: ...0 to 300 bps 212 mode 1182 to 1212 bps 103 mode 0 to 300 bps 3400 and 212 mode 103 mode QuadratureAmplitude Modulation four level PSK Phase coherent frequency shift keyed FSK Transmit Originate Receiv...

Страница 62: ...mode 100 200 ms 280 ms 3400 mode 212 mode 103 mode 50 10 ms after Carrier Detect 774 27 ms after Carrier Detect 265 60 ms after Carrier Detect 22 to 24 seconds 10 after billing delay if no Carrier De...

Страница 63: ..._____________ Anything missing that shou ld be added DYes D Ia If so describe_________________________ Any add itional comments7 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ Do you have other modem requirem...

Страница 64: ...PLY CARD FIRST CLASS PERMIT NO 1047 SUNNYVALE CA POSTAGE WILL BE PAID BY ADDRESSEE RACAL VADIC INC Technical Publications 222 Caspian Drive Sunnyvale CA 94086 9874 NO POSTAGE NECESSARY IF MAILED IN TH...

Страница 65: ...BOVE SET FORTH Any action by Buyer for any alleged breach of the warranty set forth herein shall be brought to the attention of RACAL VADIC INC by Buyer within the warranty period but not later than 3...

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