Universal Remote User Manual

14 203987 Rev A RCP2-1000 RM Remote Controller Operations Manual
In order to achieve successful operation of the RCP2-1000 RM, the SSPA must be
configured with the following parameters: Baud Rate - 9600; Serial Interface - RS485;
Network Address - any. See your SSPA manual for details. Maximum cable length is
4000 feet (1.3 km).
2.5.1 Serial Port, Main (J4)
A DB9 female connector serves as primary remote control interface connector. This
interface allows the user to connect a PC to the RCP unit in order to access its ad-
vanced features as well as access a remote SSPA unit through its serial port. Interface
is re-configurable through the front panel menu, and can be used as RS-232 or RS-
485 interface (2 or 4 wires). The RS-485 TX and RX pairs must be twisted for maxi-
mum transmission distance. A user configurable 120-Ohm termination resistor is pro-
vided on the same connector. Table 2-1 shows the main serial port pin-out.
Pin # Function Description
1 RS485 TX+ (HPA Transmit +)
2 RS485 TX- (HPA Transmit -)/RS232 TX
3 RS485 RX+ (HPA Receive -)/RS 232 RX
4 RS485 RX- (HPA Receive +)
5 GND
6 Service Request 1 Form C relay NC contact (Closed on HPA Summary Fault)
7 Service Request Common Form C relay common contact
8 Service Request 2 Form C relay NO contact (Opened on HPA Summary Fault)
9 120 Ohm termination (must be connected to pin 4 in order to enable termination)
Table 2-1: Main Serial Port Pin Out