Grundig GCA-C0335P, Owner'S Manual

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4.6.4. RS-485 Connector
The RS-485 is a communication interface between the Dome Camera and its control device. Please connect the
Control Keyboard to the Swiftdome Camera through the terminal block. The recommended cables for RS-485
communication are CAT 5 cables; maximum cable length for over 24 AWG wire is 4000 feet (1219 meters). If the
total cable length exceeds 4000 feet, using a repeater to maintain the signals is recommended. Please refer to
the figure and the table below for pin definition and wiring.
4.6.5. Cable Wiring and Connection
Users may need to conduct cable wiring when: (1) Connecting self-provided cords to the connector housing
(shown in the figure below) instead of using the equipped data cable or (2) Connecting alarm input and output
devices. The following pictures will illustrate the way to wire cords into the connector housing. Please refer to
section 4.6.2. 22-Pin Connector Definition for the exact position of each cord.
Insert the terminal into the pin holes on the connector
housing, with the hook outwards, as indicated in the figure.
7 English