User manual

Connector Pinouts
Low-Speed DS1/E1 (DSX-1) Connector Pinouts
A-4 July 2004 Wide Bank 28 DS3 - Release 2.4
Low-Speed DS1/E1 (DSX-1) Connector Pinouts
Figure A-3 Low-Speed Connector Pinouts
Low-Speed Connector Pinout Chart
Table A-2 shows wiring details for the DSX-1 low-speed cables for the LOW SPEED IN and LOW
SPEED OUT connectors. The low-speed transmit and receive cables for DS1/E1 circuits are
physically identical and the signal assignments are as shown. For flying lead connections, the
following points apply:
 The wires are packaged within the cable in three groups:
- Group 1 – twelve pairs, connecting low-speed circuits 1 through 12
- Group 2 – thirteen pairs, connecting low-speed circuits 13 through 25
- Group 3 – seven pairs, connecting low-speed circuits 26 through 28
 Four of the wire pairs in group 3 repeat the same colors as the first seven pairs in group 1.
 The wire pairs in group 3 repeat the same colors as the first seven pairs in group 1.
Pin 33
LS Rx Tip
Female Backplane
Connector
Female Backplane
Connector
Male Cable
Connector
Pin 28
Pin 60
Pin 1
LS Rx Ring
No Connection
Male Cable
Connector