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Pelco Manual C1943M (9/99) 9
DB-9 Connector Pin-outs
The DB-9 connector is reserved for factory use only.
RJ-45 Connector
RJ-45 connector pin-outs are illustrated in Figure 7.
Because both RJ-45 connectors have the same wiring pin-outs, they require the same
“flipped” cable. In other words, the IN connector requires a “flipped” cable for connecting
the first unit to the CC1, and the OUT connector requires a “flipped” for cascading other
units. A “flipped” cable is as follows: Pin 1 of the cable at one end becomes pin 8 at the
other end. Refer to Figure 8.
Note that the active pin-outs are associated with the outer four pins; namely, 1, 2, 7 and 8.
All accessories on the System 9760 require the “flipped” cable to be used to attach periph-
eral equipment. This presently pertains to the KBD, MXB, CXT, ALM, MDA, CDU-T, VCRC,
REL, and VCRC-P units.
Figure 7. RJ-45 Pin-outs
Figure 8. RJ-45 Connector Pin-out Geometry