User and Programming Manual - Rev P
California Instruments
13. System
Considerations
•
This chapter addresses some system issues concerning programming.
13.1. IEEE
Interface
The 801RP/1251RP can optionally be equipped with both RS232C and IEEE-488 interfaces.
The desired interface is selected by moving the DIP switch position 5 to the correct mode.
Only one interface can be active at a time.
13.1.1. IEEE Address Selection
The IEEE address of the 801RP/1251RP is set using the DIP switch at the rear of the unit.
Switch position 4 through 0 corresponds to bits 4 through 0 of the IEEE address. See
Figure 13-1 below.
Figure 13-1: GPIB Address Selection Switch
•
The black section represents the switches.
•
The above configuration would cause the 801RP/1251RP to be in GPIB mode at
address 10.
•
Listen only must be in the up position to work properly.
Note: Switch setting changes do not take effect until power is cycled.
13.2. RS232C
Interface
A suitable cable to connect the 801RP/1251RP AC Source to a 9 pin PC-AT style serial port
is supplied with the source. If you are unable to locate this cable, you need to use a cable
that conforms to the wiring diagram shown in Figure 13-2.
October 2005
RP Series
50
