Specifications

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.