Crestron Electronics CP4N - Page 102

96 • 4-Series™ Control Systems Product Manual — Doc. 8559B
Observe the following when connecting the control system:
l
Use Crestron power supplies for Crestron equipment.
l
The CONTROL SUBNET ports are PoE+ PSE ports. Enabling PoE+ power sourcing requires
connection of the PoE+ INPUT POWER port to an external Crestron power supply
(PW-5430DUS, sold separately). Wiring that connects to a PoE+ PSE is designed for
intrabuilding use only.
l
If PoE+will be used, the PoE+ power supply must be connected to the control system
before it is powered on.
l
The S1, S2, and S3 slots are designed to house Crestron control cards.
l
Connect the chassis ground lug to a known earth ground circuit (such as building steel) to
ensure that the control system is grounded properly.
l
Apply power after all connections have been made.
COM1–2 Connections
Port RS-232 RS-422
1
RS-485
G GND GND GND
2
TX TX(from control
system)
TX- (from
control
system)
TX-/RX-
RX RX(to control system) RX+(to control
system)
Not used
RTS RTS(from control
system)
TX+(from
control
system)
TX+/RX+
CTS CTS(to control system) RX- (to control
system)
Not used