Specifications

Quintech Electronics and Communications Inc.
SRX Series Switching System Rev. A
4
If you are using a computer to control the SRX, you can use a direct serial connection or a
10BaseT Ethernet connection. For serial control, connect a serial cable (RS-232 or RS-422/485)
from the computer to the 9-pin SERIAL port on the rear panel of the controller module. The
connector is shared for both RS-232 and RS-422/485. No NULL MODEM or crossover cable is
needed when connecting an RS-232 cable. For Ethernet connections, connect the controller to a
network port or router via the Ethernet port using a standard cable. You can also connect
directly to the computer’s network port, but this requires a crossover cable.
Power Connections
To power up each unit, connect it to an appropriate AC power source. Most units will be
equipped with a 2-amp slo-blo AC fuse. The AC/DC power supplies used in the SRX are
extremely reliable, and provide short circuit protection.
Before powering up the controller module, power up all other SRX modules first.