Dalstar DS-44-04M30 User's Manual And Reference page 14

4M30 Camera User's Manual
The camera uses an RJ-11 telephone-style connector for serial
communications, with four conductors installed in a six-
position connector. Note that both four- and six- conductor
plugs may be used interchangeably with the RJ-11 jack.
IMPORTANT:
as "DTE" (Data Terminal Equipment) devices requiring the
TXD and RXD lines to be swapped when interconnecting
the two (note that pin 4, normally the yellow wire, is not
used on the RJ-11.) That is, the TXD pin represents DATA
OUT and the RXD pin represents DATA IN on both
devices, so that one device's TXD line must connect to the
other device's RXD line and vice-versa.
Figure 4: 25 Pin Serial Port Connector to Camera RJ-11 Connector
Figure 5: 9 Pin Serial Port Connector to Camera RJ-11 Connector
DALSA
Both the PC/AT and the camera are configured
GND TXD RXD
RJ-11
View into female jack
6-position with 4 conductors
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