0150-0238B
1-7
Kalatel DSR-1000eZ
Figure 1-4 Normally Open Relay Alarm Connection
Pin 1
Pin 7 or 10
A l a r m I n p u t
G r o u n d
A c c e s s o r i e s P C B
T y p i c a l A l a r m D e v i c e
R e f e r t o e a c h a l a r m d e v i c e s ' s
m a n u a l f o r s p e c i f i c w i r i n g d e t a i l s .
N o r m a l l y O p e n
( C l o s e s D u r i n g A l a r m )
Alarm Out
The Alarm output is activated when a teletext alarm is detected,
or 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 DSR-1000eZ.
The DSR-1000eZ 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 DSR-1000eZ.
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.
