Pelco Kbd300 operation manual Installation, Pelco Manual C527M 11/97

3.0 INSTALLATION

NOTE: Refer to the CM6700 Installation/Operation Manual (C523M-A) for detailed operating instructions.

Communication to the CM6700 keyboards is RS-485. Wall jack, modular data cable, and 12 VAC transformer (all supplied) combine to provide a local, single cable plug- in connection to the keyboard. A double-sided sticky pad, to secure the wall jack to a suitable surface, is also supplied.

All cabling between wall jacks is user supplied.

Maximum cable distance for RS-485 communication over 24-gauge wire is 4000 feet. For user supplied cable, Pelco recommends using shielded twisted pairs such as Belden 9843, or similar cable that meets or exceeds the basic requirements for EIA RS-485 applications.

4 Pelco Manual C527M (11/97)