Mitel 3300 Technician's Handbook page 266

3300 ICP Technician's Handbook
Universal and R2 NSU Pin Allocations
Table 33: Quad
RJ-45 Connector Pin
Notes:
1: One or two Quad CIMs can be installed in any 3300 ICP controller to provide
for connection to a maximum of 12 ASUs, with the exception of the CX/CXi and
CX II/CXi II which support only the first three ports of one Quad CIM module,
and the AX controller which support four ports on one module.
2: The Universal ASU connects to the controller over a Category 5 Unshielded
Twisted Pair (UTP) crossover cable through a CIM interface. The Category 5
cable is of the same type used for Ethernet connections and within the cable
twisted pairs are arranged as: 1,2: 3,6; 4,5; 7,8. Each tied pair is connected to a
75 ohm resistor. The Universal ASU can be located up to 30 meters (98.4 feet)
away from the controller. The interface employs a single standard 8-pin modular
jack consisting of 2 balanced signal pairs and is located on the front of the unit.
RJ-45 Connector Pin
256
1
or Single CIM Port Connector
1
2
3
4
5
6
7
8
Table 34: Ethernet Connector
1
2
3
4
5
6
7
8
2
(Controller and ASU)
Signal Name
RX+
RX-
TX+
Not used
Not used
TX-
Not used
Not used
Signal Name
TX+
TX-
RX+
Not used
Not used
RX-
Not used
Not used