Models 947, 948 and 960 Leak Detectors Operations and Service Manual
2-9
2.4 Optional Interface Connections
Available ports for interface connection:
❑
Service RS-232 serial port for a service pendant or host computer
to monitor and change parameters in the 947/948/960 Platform
(J1 male 9-pin D connector in the Service compartment)
❑
RS-232 serial port for a high speed host computer or PLC to control, monitor, and
change parameters in the 947/948/960 Platform (J123 female 25-pin connector)
❑
Discrete I/O port for PLC control (J120 female 37-pin D connector)
❑
Discrete BCD and analog leak rate output port for PLC control
(J121 female 25-pin D connector)
❑
Optional Universal Remote Control Box port the (J122 female 9-pin D connector)
Refer to Section D, “Inputs and Outputs” on page D-1 for available rear panel ports,
pinouts, and signal designations.
The rear panel connectors are shown in Figure 2-4.
Figure 2-4
Rear Panel
2.4.1 Grounding and Isolation
The service, remote, and rear panel RS-232 ports in the 947/948/960 are referenced to the
chassis ground and to the system ground.
Summary of Contents for 948
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