AT&T 2400 manual Connect the Null Cable Cable to the SID, Back View of the SID

Hardware Installation

Connect the Null Cable and the

Y-Cable to the SID

The AT&T installation technician, the customer, or the customer’s switch technician must complete this task.

The NEAX 2400 switch communicates with the SID through a Message Center Interface (MCI) link. To connect the SID to the MCI digital port, you must connect a Null cable and a Y-cable to the SID. Use the following instructions to connect the cables to the SID.

1.Connect one end of the Null cable to the 25-pin Link B on the SID, shown in Figure 4-3.

2.Connect Port 0 of the Y-cable to the free end of the Null cable.

NOTE:

Port 1 on the Y-cable is not used for any connections with this integration.

Proceed to the next section.

	25 Pin		25 Pin
Power		Link B			Link A
Switch
Power
Cord
Outlet	Diag	Net B	Net A	Modem	Line B	Line A
(Male)
	115-230V AC
	50/60 Hz

(Fan Outlet)

Figure 4-3. Back View of the SID

4-8Issue 2 December 1995