GE 0150-0255C User Manual

Page of 54
0150-0255C 
1-5 
Kalatel VDR 
Alarm Out 
The Alarm output is activated while the Alarm Input is active.  
The Alarm output is only active for the duration of the alarm 
event. 
Output: Active Low 
High: 12V 
Low: Ground 
Current Out: 50mA Max 
Short Circuit Protected. 
Low for duration of alarm. 
 
Record Start In 
Record Start In will place the unit in Record mode when 
activated.  Compatible with the Disk End Out signal from a 
second unit. 
Input: Active Low TTL w/ pull-ups 
or Normally Open Relay. 
High: 5V (12V tolerant) 
Low: Ground 
Minimum Duration: 0.5 Seconds 
 
Alarm Record Reset 
This feature is for future development, and has not yet been implemented. 
VEXT Pulse Out 
Output: Active Low 
High: 5V 
Low: Ground (0.8V Max) 
Current Out: 50mA Max 
Short Circuit Protected. 
 
 
The Video External Pulse connection (VEXT) simplifies 
multiplexer operation by automatically synchronizing the 
Multiplexer and the VDR. 
The VDR sends a VEXT pulse to the Multiplexer indicating that it 
is ready to record the next image.  The Multiplexer responds by 
sending the next image to the Video Input on the VDR. 
The VEXT connection is especially beneficial for units 
configured with dual record speeds (Normal and Alarm). 
Use of the VEXT connection is Highly Recommended when 
connecting the unit to a multiplexer.   
 
Error Out 
The Error Out signal is activated when the unit experiences any 
operational or internal error. 
Output: Open Collector 
High: Transistor Off 
Low:  Transistor On 
Active When On. 
Current Out: 
10mA Max 
Minimum Duration: 0.5 Seconds 
 
Videoloss Out 
The Videoloss Out signal is activated when the unit experiences 
videoloss on the video input (Composite). 
In the event of videoloss, VIDEOLOSS will be indicated near the 
upper left hand corner of the primary monitor. 
Output: Open Collector 
High: Transistor Off 
Low:  Transistor On 
Active When On. 
Current Out: 
10mA Max 
Minimum Duration: 0.5 Seconds