TOA Electronics ALARM INPUT UNIT C-AL80(H) - Manual (Page 9)

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6. USING THE ALARM/REMOTE FUNCTION
6.1. Alarm/Remote Input
The Alarm/Remote input terminals on the rear panel are designed to be used for both alarm and remote
inputs. Select either input with the Mode Selection switch. (Refer to p. 7.)
Alarm input: Enables spot alarm operations using such external equipment as sensors.
Remote input: Selects the channel and position of the camera corresponding to the abbreviation number
when shorted to GND.
(Only the channel is selected for other cameras than the Combination Camera.)
• Electrical Alarm/Remote Input Specifications
Input: 32 channels, no-voltage make contact input
Open Voltage: 5 VDC
Short-circuit Current: Max. 5 mA
6.2. Alarm/Remote Output
It cannot be used.