Alarm Inputs And Outputs - GE TruVision DVR 20 User Manual

49BChapter 2: Installation

Alarm inputs and outputs

Table 2: Number of inputs and outputs
4-channel TVR 20
8-channel TVR 20
16-channel TVR 20
Alarm inputs
There is a pin connector on the rear panel to connect the alarm inputs. The number
of pins depends on the TVR 20 model. They can be wired normally open (NO) or
normally closed (NC). They are configured in section "Responding to an alarm" on
page 73.
Note: Do not attempt to wire any accessories directly to the I/O connector on the rear
panel. These connections require dry contact (voltage free) closure to activate.
Figure 2: Programmable alarm inputs
Alarm input with NO in idle state
Alarm outputs
The four alarm output relays respond to input alarms and triggers. They can be
configured as NO or NC in section "Alarm and event notification" on page 75.
Table 3: Alarm output pins
Alarm out number
Alarm out 1
8
4 external alarm inputs
8 external alarm inputs
16 external alarm inputs
Pin Description
1 NO (Normally Open)
2 C (Common)
3 NC (Normally Closed)
1 internal alarm output
2 internal alarm outputs
4 internal alarm outputs
Alarm input with NO in idle state
TruVision DVR 20 User Manual