Cloud Electronics CDI-S200 - Manual (Page 12)

CDI-S200 Installation Guide v1.0 12
enable paging). The following examples illustrate this.
Paging may be cancelled – whatever combination of zones has been enabled – with a single
“release” command, which contains no variables.
Note that it is not possible to enable paging via Mic Input 2 by serial control.
EXAMPLE
COMMAND
(ASCII)
COMMAND
(HEX)
Enable paging in Zone 1 3C 4D 31 2C 50 41 58 4F 4F 2F 3E
Enable paging in Zone 2
3C 4D 31 2C 50 41 4F 58 4F 2F 3E
Enable paging in Zones 2 and 3 3C 4D 31 2C 50 41 4F 58 58 2F 3E
Release paging 3C 4D 31 2C 50 52 2F 3E
APPENDIX
Cable lengths
RS-232C serial communication can use either shielded or unshielded cable. The longest cable run
that can be practically used for error-free operation in a given installation will depend on several
factors: cable type, the baud rate used and the amount and type of electrical noise present in the
cable’s vicinity.
A realistic figure for maximum cable length is 250 ft. (76 m.) using good-quality shielded cable and
100 ft. (30 m.) using unshielded cable, at 9600 baud (the most common data rate). However, the
figure may be higher or lower in a particular installation.
Lowering the baud rate will permit significantly longer cable runs to be used.