Technical data

Requirements for European Operation
116273-B Rev 00
D-3
Synchronous Cabling Requirements
This section lists the synchronous (serial) interface cabling information required
to meet
• V.28 Compliance
• V.35 Compliance
• X.21 Compliance
V.28 Compliance
V.28 compliance requires cable Order No. 7837. Refer to Figure D-1 and
Table D-3
for cabling information.
Figure D-1. Cable Order No. 7837 (V.28 Compliant)
Table D-3. WAN Interface (Cable Order No. 7837)
Bay Networks Termination Remote Termination
Pin Signal Pin Signal
1 Frame Ground 1 Frame Ground
2 Send Data+ 2 Send Data
3 Receive Data+ 3 Receive Data
4 Request to Send+ 4 Request to Send
(continued)
Pin 13
Pin 1
Pin 25
Pin 14
15 Feet
25-position D-Sub plug with M-3 jack screws
(ground shield connected to backshell)
44-position D-Sub plug with screw locks
(ground shield connected to backshell)
CAB0069B
Pin 1
Pin 16
Pin 31
Pin 15
Pin 30
Pin 44