CTI Products CCU-2 Channel Control Unit - Manual (Page 15)

CCU-2 Hardware Reference Connectors
CTI Products, Inc.
68-11843-100 15
6. Connectors
The NETWORK IN/OUT ports on the front of the CCU are used to connect the
CCU with other MCN modules. These ports carry both the network data signals
as well as DC power for power distribution with other modules. Table 5 gives the
pinout for these connectors. Figure 4 shows the location of pin 1 for each port.
CA-80068-100
DC IN
IN OUT NETWORK
PRODUCTS, INC.
PIN 1
Figure 4 - Network IN/OUT Ports
Pin Function
1 DATA +
2 DATA -
3 + POWER
4 No Connect
5 No Connect
6 - POWER
7 - POWER
8 + POWER
Table 5 - Network Connector Pinout
The DC IN port provides the primary power connection to the module. Power is
distributed through the NETWORK OUT connector to provide power to the
NETWORK IN connector of the MCN unit it is connected to. Each power
supply can power up to four units total. See reference 1 for complete details of
connections to the network and DC IN connectors.
The Network In connector can be used for input power even if the CCU-2 module
will not be connecting to a PC. Be sure that its Group & Module address are set
so that the address doesn't conflict with any other modules in the system.