background image

A

APPPPEEN

ND

DIIX

 

C

C

MODEL 2703RC-A-A INTERFACE STANDARDS

EIA-530 & V.35 Interface

DB25 Female Connector

Pin

Signal

Source

1

FG (Frame Ground)

-

2

TD(Transmit Data-A)

DTE

3

RD (Receive Data-A)

DCE

4

RTS (Request to Send-A)

DTE

5

CTS (Clear to Send-A)

DCE

6

DSR (Data Set Ready-A)

DCE

7

SGND (Signal Ground)

-

8

CD (Carrier Detect-A)

DCE

9

RC/ (Receiver Clock-B)

DCE

10

CD/ (Carrier Detect-B)

DCE

11

-

12

TC/ (Transmit Clock-B)

DCE

13

CTS/ (Clear to Send-B)

DCE

14

TD/ (Transmit Data-B)

DTE

15

TC (Transmit Clock-A)

DCE

16

RD (Receive Data-B)

DCE

17

RC (Receiver Clock-A)

DCE

18

-

19

RTS/ (Request to Send-B)

DTE

20

DTR (Data Terminal Ready-A) DTE

21

-

22

DSR/ (Data Set Ready-B)

DCE

23

DTR/ (Data Terminal Ready-B) DTE

24

-

25 -

Copyright © 1998

Patton Electronics Company

All Rights Reserved

22

Summary of Contents for 2703RC-A

Page 1: ...A AL L MODEL 2703RC A MegaLink 1 G 703 E1 Digital Modem Rack Mount Card SALES OFFICE 301 975 1000 TECHNICAL SUPPORT 301 975 1007 http www patton com Part 07M2703RC A A Doc 031122UA Revised 2 4 99 An I...

Page 2: ...mined by turning the power off or removing the card the user is encouraged to try to correct the interference by one or more of the fol lowing measures moving the computing equipment away from the rec...

Page 3: ...erface to be adapted to X 21 using a special DTE cable available from Patton The Model 2703RC A is designed to mount in Patton s 2U high 16 slot rack chassis or 2 4 8 slot Cluster Boxes These have a s...

Page 4: ...o a standalone Model 2703 Firmware Revision B or older unit at 256 512 and 1024 kbps The firmware version of the standalone 2703 is printed on the bottom side of the unit Switches S2 and S3 Rate Adapt...

Page 5: ...rked THIS SIDE UP FOR V 35 on one side of the board other side 4 Plug the interface board into the 20 pin header socket with the appropriate interface pointed UP and with the arrow pointing toward the...

Page 6: ...RX Pin 2 to GND Strap Off LK2 RX Shield Pin 3 to GND Strap Off LK3 TX Pin 4 to GND Strap Off LK4 Clock Synchronization Strap Off LK5 DTE SGND to FGND Strap On LK4 Clock Synchronization EIA 530 V 35 vs...

Page 7: ...viceable parts in the power supply section of the Model 2703RC A Voltage setting changes and fuse replacement should only be per formed by qualified service personnel Contact Patton Electronics Techni...

Page 8: ...lmost all the way into the chassis 4 Push the front card gently into the card edge receptacle of the rear card It should click into place 5 Secure the front card using the thumb screws NOTE Since the...

Page 9: ...ce Any coaxial cable connected to the dual coax rear card must incorporate an outer shield that has no less than 90 coverage Notice Any terminal cable connected to the Model 2703RC must be shielded ca...

Page 10: ...the unit C Perform a BER bit error rate test on each unit If the BER test equipment indicates no faults but the data terminal indi cates a fault follow the manufacturer s checkout procedures for the d...

Page 11: ...try Module 1000RPSM 48A 48V Front Power Supply Module 1000RPEM V 120 240V CE Compliant Rear Power Entry Module 1000RPSM V 120 240V CE Compliant Front Power Supply Module 1180RC DB V 35 Interface Drive...

Page 12: ...y A DCE 7 SGND Signal Ground 8 CD Carrier Detect A DCE 9 RC Receiver Clock B DCE 10 CD Carrier Detect B DCE 11 12 TC Transmit Clock B DCE 13 CTS Clear to Send B DCE 14 TD Transmit Data B DTE 15 TC Tra...

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