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CHEETAH 64 SERIES – CHAPTER 8
81-9059-0577-0 Rev. E
8.8.5 RCP Panel Port Connectors
Two RCP connectors, located on the rear of the unit and illustrated in Figure 8-16, provide RS485 serial communication interfaces using the PESA RCP Protocol (Document No. 81-90620300-0).
RCP #1
S
(-)
(+)
S
(-)
(+)
RCP #2
FIGURE 8-16 RCP Panel Port Connectors
These RCPs are connected to PESA Remote Control Panels with daisy-chained cables
constructed with RCP connectors (Part No. 81-9029-0780-0) and shielded, twisted-pair cable
(Part No. 81-9028-0043-2, Belden 8451, or equivalent) as illustrated in Figure 8-17. The
connector body has an integral strain relief, which requires the use of a nylon cable tie, which is
included with the connector. If cable tie is not available, use PESA Part No. 81-9021-0028-8.
81-9029-0811-0 to
Panel Port Connector
High (+) 1
Low (-) 3
Shield(S) 2
81-9029-0780-0 to
Remote Control Panel
1 High (+)
2 Low (-)
3 Shield(S)
1
2
3
1
2
3
Cable is not pin for pin! Pins 2 and 3 are swapped.
FIGURE 8-17 RS-485 Cable Construction
Proprietary Information of PESA Switching Systems
8-23