Mitel 3300, Technician'S Handbook

Page: 266 / 431

256
3300 ICP Technician’s Handbook
Universal and R2 NSU Pin Allocations
Table 33: Quad
1
or Single CIM Port Connector
2
(Controller and ASU)
RJ-45 Connector Pin Signal Name
1 RX+
2 RX-
3 TX+
4 Not used
5 Not used
6 TX-
7 Not used
8 Not used
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.
Table 34: Ethernet Connector
RJ-45 Connector Pin Signal Name
1 TX+
2 TX-
3 RX+
4 Not used
5 Not used
6 RX-
7 Not used
8 Not used