4.3. Connecting Switched Devices to RPC-4850 Series Units
Make certain that the power supply to the RPC-4850 series unit is switched Off, and
then connect the supply cables from your DC powered devices to the Switched Output
Circuits on the RPC-4850 back panel. Check to make certain that cables are securely
attached, and then install the protective covers over each output terminal block. The
protective covers are held in place by screws that pass through the holes in the cover
and then thread into the screw receptacles at the end of each Output Terminal Block.
4.4. Connecting Switched Devices to RPC-40L8A4 Series Units
The output terminals on the RPC-40L8A4 back panel are used to connect DC voltage to
each switched device. Each output terminal includes eight connectors (four circuits.)
For further details regarding connecting switched devices to RPC-40L8A4 series units,
please refer to Section 3.2.2 in this user's guide.
4.5. Serial Console / RS232 Port Connection
The Serial Console Port can be connected to either an external modem or a local PC,
but not both items at the same time. In the default state, the Console port is configured
for 9600 bps, no parity, 8 data bits, 1 stop bit. Appendix B describes the Console Port
interface. Note that RPC-4850 series units differ from RPC-40L8A4 series units as
• RPC-4850SeriesUnits: The RPC-4850 Console Port is a male, RS232C DB9
• RPC-40L8A4SeriesUnits: The RPC-40L8A4 Console Port is a female RS232C
4.5.1. Connecting a Local PC
Use the supplied null modem cable to connect your PC Console port to the RPC
Console (RS232) Port. Make certain that the Serial Port Mode is set to "Normal" as
described in Section 6.7.
4.5.2. Connecting an External Modem
When connecting directly to an external modem, use a standard AT to Modem cable.
Make certain that the modem is initialized at the same default parameters as the RPC
Console Port. Make certain that the RPC Serial Port Mode is set to "Modem" or "Modem
PPP" as described in Section 6.7.