Carrier Access SNMP manual Connecting the Dual T1 Lines, Customer Premises Installations

Connecting the Dual T1 Lines

Table 5-2:50-Pin Tip & Ring Jack

Pair	Pin Location		Function
	26		Tip Channel 1
1	1		Ring Channel 1
	27		Tip Channel 2
2	2		Ring Channel 2
↓	↓	↓
	49		Tip Channel 24
24	24		Ring Channel 24
	50		Alarm Tip Channel 25
25	25		Alarm Ring Channel 25

5.5 Connecting the Dual T1 Lines

5.5.1 Customer Premises Installations

Connections to the T1 network interfaces are made at the RJ-48C 8-pin modular jacks on the Access Bank II SNMP Control Panel (see Figure 5-1) using one (or two) 10-foot Category 5 T1 cable(s).

Note: Only one T1 network interface cable is provided with each unit. Additional cables (P/N 005-0009) are available from distributors or dealers of CAC products.

The pin assignments for the RJ-48C jacks are defined in Table 5-3.

Table 5-3: T1 Line Interface on RJ-48C—T1 Modular 8-Pin Jack

Pin Number	Signal	Signal Direction
1	Receive Ring	From DS1 Network
2	Receive Tip	From DS1 Network
3	No connection
4	Transmit Ring	To DS1 Network
5	Transmit Tip	To DS1 Network
6	No connection
7	Receive Ground
8	Transmit Ground

For a customer premise installation, the primary T1 Span 1 and secondary T1 Span 2 network inter- faces are cabled to carrier T1 demarcation points on the customer premises. To connect these cables, plug either end into the RJ-48C connector of the desired T1 network interface and the other end into the RJ-48C jack at the carrier T1 demarcation point jack.

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