Connect The Mci Cable To The A25B Cable - NEC 2400 Integration Manual

Table 4-4. Cable Pinouts
NEAX 2400
25 Pair
Port 0
Violet/Slate
Blue/White
Orange/White
Blue/Red
Port 1
Violet/Slate
Green/Black
Brown/Black
Green/Yellow
Proceed to the next section.
Connect the MCI Cable to the A25B
Cable
The customer or the customer's switch technician must connect the cable. AT&T
does not assume responsibility for connecting the MCI cable and the A25B
cable.
After connecting the MCI cable to the switch, you must connect the MCI cable to
the A25B 25-pair Amphenol c able. Use the following instructions to complete the
connection.
1. Connect the free end of the MCI cable to one end of the A25B cable.
2. Connect the free end of the A25B cable to the Amphenol connector on the
Y-cable shipped with the SID.
Proceed to the next section.

Connect the MCI Cable to the A25B Cable

RS-232
RS-232
Pin
Function
Number
Frame Ground
Transmit Data
Receive Data
Signal Ground
Frame Ground
Transmit Data
Receive Data
Signal Ground
1
3
2
7
1
3
2
7
Issue 2 December 1995
4-7