Mitel 3300 - Pin Allocations; ASU II Line and Trunk Connector

Services Units and Gateways
83
The System Fail Transfer ONS ports are physically mapped to the LS trunks as follows:
You should plan carefully where you want the ONS ports to terminate within the network. If
power is lost they will provide the only connectivity to the telephone network. The LS trunks do
not have to be dedicated to support system fail transfer. You can place them in a trunk group
and use them to route calls to the central office during normal system operation.
Pin Allocations
ASU II Line and Trunk Connector
ONS lines and LS trunks are connected using a 25-pair D-type (Amphenol) connector.
Table 55: ONS Port Circuit Assignment to LS Trunk Circuit
Universal ASU
ASU II or AX controller with
4 + 12 Combo Card
AMB in CX/CXi, CX/CXi II or
MXe
ONS Port
Circuits
LS Trunk
Circuits
ONS Port
Circuits
LS Trunk
Circuits
ONS Port
Circuits
(PLID)
LS Trunk
Circuits
(PLID)
13 1 1 1 4,1,1,1 4,1,1,5
14 2 2 2 4,1,1,2 4,1,1,6
15 3 3 3
16 4 4 4
Table 56: 25-pair Connector Pin Allocation
Pin
Number
Signal
Pin
Number
Signal
24 Port ONS 16 Port ONS
4 + 12
Combo
24 Port ONS 16 Port ONS
4 + 12
Combo
1 ONS Ring 1 ONS Ring 1 ONS Ring 1 26 ONS Tip 1 ONS Tip 1 ONS Tip 1
2 ONS Ring 2 ONS Ring 2 ONS Ring 2 27 ONS Tip 2 ONS Tip 2 ONS Tip 2
3 ONS Ring 3 ONS Ring 3 ONS Ring 3 28 ONS Tip 3 ONS Tip 3 ONS Tip 3
4 ONS Ring 4 ONS Ring 4 ONS Ring 4 29 ONS Tip 4 ONS Tip 4 ONS Tip 4
5 ONS Ring 5 ONS Ring 5 ONS Ring 5 30 ONS Tip 5 ONS Tip 5 ONS Tip 5
6 ONS Ring 6 ONS Ring 6 ONS Ring 6 31 ONS Tip 6 ONS Tip 6 ONS Tip 6
7 ONS Ring 7 ONS Ring 7 ONS Ring 7 32 ONS Tip 7 ONS Tip 7 ONS Tip 7
8 ONS Ring 8 ONS Ring 8 ONS Ring 8 33 ONS Tip 8 ONS Tip 8 ONS Tip 8
9 ONS Ring 9 ONS Ring 9 ONS Ring 9 34 ONS Tip 9 ONS Tip 9 ONS Tip 9
10 ONS Ring 10 ONS Ring 10 ONS Ring 10 35 ONS Tip 10 ONS Tip 10 ONS Tip 10
11 ONS Ring 11 ONS Ring 11 ONS Ring 11 36 ONS Tip 11 ONS Tip 11 ONS Tip 11
12 ONS Ring 12 ONS Ring 12 ONS Ring 12 37 ONS Tip 12 ONS Tip 12 ONS Tip 12
13 ONS Ring 13 ONS Ring 13 38 ONS Tip 13 ONS Tip 13
14 ONS Ring 14 ONS Ring 14 39 ONS Tip 14 ONS Tip 14