10
Simplex Multiplexer
Alarm
The
alarms
connector includes pins for mechanical or TTL/CMOS
standard alarm inputs, the alarm hold input and the alarm output.
These connections allow the Simplex to be completely integrated
with security systems. See
Chapter 6 — Alarms
and
Appendix A —
Alarm Connector Pin Assignments
for details.
Alarm Inputs
Alarm Inputs may consist of a contact type or TTL/CMOS
alarm signal. Connect
alarms
pins (numbered
1–16
) as re-
quired, to one side of a contact type or TTL/CMOS compatible
alarm device. Connect the remaining side of each device to
ground (screw labeled
gnd
on rear panel).
ALARM INPUT PO-
LARITY
is menu selectable and defaults to normally open (NO)
or TTL/CMOS active low.
Alarm Hold Input
NOTE: This is not normally used. See Record Mode Alarm
Response for details.
The Alarm Hold Input accepts an active high contact type or
TTL/CMOS alarm signal. Connect
alarms
pin
36
to the alarm
hold output of the VCR or other device. Connect the remaining
side of the output to ground (screw on rear panel labeled
gnd
).
Alarm Output
The Alarm Output is a contact type signal between
alarms
pin
17
(common) and pin
18
(normally closed) or pin
19
(normally
open). Connect the appropriate pins to the alarm input of the
VCR or other device.
Autodetect VCR Speed
Pin
37
connects to the VCR to receive the timing signal (it may
be named VCR trigger input, sync pulse input or clock) so the
multiplexer can send images at a rate matching the VCR re-
cording speed. If the VCR changes its recording speed, the
multiplexer automatically adjusts the image rate to match.
Check your VCR manual for timing signal information.
Remote
The two RJ11
remote
connectors are for the remote control
panel option or RS-232 control commands. See
Remote Control
.
Remote Control Panel
Connect the cable provided with the remote control panel to
the
remote in
connector. If daisy chaining to another Simplex,
connect the
remote out
of this Simplex to the
remote in
of the
next Simplex in the chain. The remote panel and the Simplex
front panel operate identically and may be used at the same
time. See
Remote Control Panel
manual for details.
