OpenEye CM-511 - Manual (Page 18)

18
ALL-IN-ONE DATA CABLE
Note Be careful not to pull the cables improperly during installation. OpenEye suggests that you fasten the
cables after installation is complete.
Note When wiring the power cable, make sure the Ground wire is inserted into the mid-pin of the terminal
block.
RS-485 Connector Definition
The dome camera uses the RS-485 interface to communicate with a connected control device. Connect a
control keyboard to the speed dome using the terminal block. OpenEye recommends using CAT 5 cables for
RS-485 communication with a maximum length of 4000 feet (1219 meters) for 24-gauge wire. If the total cable
length exceeds 4000 feet, use a repeater to maintain the signals. Refer to the table below for pin definition and
wiring.
Pin
Corresponding Pins
(22-Pin Connector)
Definition
1 7,10 T+, R+ (D+)
2~4 Reserved
5 8,9 T-, R- (D-)