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4−50 Installation and Maintenance Volume
Octel 200/300 S.4.1 PB60019−01
APIC Integration Card
The following pin assignments are for the AT&T APIC card as they appear on the rear 50-pin telco
connector. If an APIC card is installed in slot A9, it uses 50-pin telco connector P9; if it is installed in slot
A10, it uses connector P10, etc.
. “TX” signals are from the APIC to the PBX. “PX” signals are from the PBX to the APIC.
50-Pin Number
Signal Function 50-Pin Number Signal Function
1 TX RING 1 26 TX TIP 1
2 PX RING 1 27 PX TIP 1
3 TX RING 2 28 TX TIP 2
4 PX RING 2 29 PX TIP 2
5 TX RING 3 30 TX TIP 3
6 PX RING 3 31 PX TIP 3
7 TX RING 4 32 TX TIP 4
8 PX RING 4 33 PX TIP 4
9 TX RING 5 34 TX TIP 5
10 PX RING 5 35 PX TIP 5
11 TX RING 6 36 TX TIP 6
12 PX RING 6 37 PX TIP 6
13 TX RING 7 38 TX TIP 7
14 PX RING 7 39 PX TIP 7
15 TX RING 8 40 TX TIP 8
16 PX RING 8 41 PX TIP 8
17 TX RING 9 42 TX TIP 9
18 PX RING 9 43 PX TIP 9
19 TX RING 10 44 TX TIP 10
20 PX RING 10 45 PX TIP 10
21 TX RING 11 46 TX TIP 11
22 PX RING 11 47 PX TIP 11
23 TX RING 12 48 TX TIP 12
24 PX RING 12 49 PX TIP 12
25 (no connection) 50 (no connection)