AT&T Release 2.0 manual Connecting the Control Unit to the Network Interface

Connecting the Control Unit to the Network Interface

Table 4-10. Switch Settings in Hybrid/PBX Mode: Network and Equipment

are ESF Framed Using AMI ZCS Line Code

Switch				Position
	1	2	3	4	5	6	7	8
5	up	down	down	up	u p	down	✱	up
6	up	up	up	down	down	u p	up	up

✱When this switch position is down, the near-end CSU polls the far-end CSU for alarm status.

Table 4-11. Switch Settings in Hybrid/PBX Mode: Network and Equipment

are ESF Framed Using B8ZS Line Code

Switch				Position
	1	2	3	4	5	6	7	8
5	up	up	up	down	down	down	up	up
6	up	down	down	down	down	up	up	up

Installing the Channel Service Unit 4-23