Data Sheet

SM8-RC
Remote Controllable
Microphone Mixer
Switcher
Electronic Technical Services Inc.
211 Conchas SE
Albuquerque, NM 87123
PH 505-888-3923 FAX [phone]
Website: www.etsnm.com
Description
RS232 controllable microphone switcher /
mixer for remote monitored audio
surveillance systems. The SM8-RC
connects to video/audio transmission
equipment (with an available RS232 port)
that uses telephone, Internet or LAN
mediums. The SM8-RC fills a need when
the transmission equipment lacks a
sufficient number of microphone audio
inputs and switching / mixing capabilities.
Programming is required by the remote
equipment manufacturer to control the
SM8-RC via RS232. The SM8-RC
Powers up to eight SM1 pre-amplified
microphones and outputs a line level audio
signal. The SS8-RC can be expanded to
32 microphone zones by looping
connections from an SM8-RC to up to 3
additional SM8-RCs. Simple ASCII
commands control the SM8-RCs via
RS232.For a complete listing of commands
see www.etsnm.com.
Includes
• SM8 Switcher / Mixer.
• 12 VDC AC adapter.
• 3’ RCA Patch cable.
• DB9 to 3.5mm RS232 patch cord.
Options
• SM1 Microphones.
• RM1 Rack mount.
Wiring Requirements
• Stranded 22-gauge, 2-conductor
shielded cable. Distances up to 1000’.
Caution
It is the responsibility of the installation company and end
user to comply with state and federal privacy laws regard-
ing the use of audio surveillance equipment. If you are
unfamiliar with these laws, consult a qualified attorney. In
most cases, posting the provided warning labels in plain
view is all that is required.
Warranty
1 year parts and labor.
SM8 Switcher / Mixer Specifications
• Level controls for each microphone.
• Local microphone switching mode and built in
speaker for troubleshooting problems in the
field.
• Easy cable run terminations.
• Power: 12VDC @ 0.5A.
• Serial port: RS232 at 2400 Baud 8N1.
• Dimensions: W 2.75 x L 4.38 x H 1.56.