IM-977
INSTALLATION AND USERS GUIDE
3019 Alvin DeVane Blvd.
Ste. 560
Austin, TX 78741
Phone: (650) 965-8020
CORPORATION
®
TECH SUPPORT: 650-965-8020 ext. 703
The IM-977 is a Waterproof Radio Interface and full-duplex
Intercom with the following features:
·
Single Radio Interface, Fully Adjustable RX/TX levels,
use with RCB or RC cable types
·
4 Radio Transmit Circuits, TRS Headset Jacks
(extension TX station RS-960 is available)
·
Remotes Port for Up to 4 Intercom-Only Positions
·
2 PTT Footswitch or Pushbutton Station Ports:
A: assignable to HS1 or HS2
B: assignable to HS3 or HS4
(Footswitch is FS-950, Pushbutton is PBS-950)
·
AUX Audio Input (requires 25-0088 cable)
(see notes on page 3)
·
Automatic AUX Muting on PTT or Radio RX,
3-second delayed recovery from AUX Mute
(either PTT or RX mute function can be turned off)
·
Fully Isolated DC Power for Noise Immunity, operates
on 12 to 24 Volts DC
·
TX Audio PTT Lockout, only 1 user can transmit at any
time,
and only that users’ voice is sent to radio
·
Can connect to 2 radios with RRC-950
(requires 25-0108 cable)
Questions or technical issues? Please call:
3/29/16 SBH
IM-977_UserGuide_REV_C.pdf
Page of
1
5
POWER
S
AUX
AUDIO
HEADSET 1
HEADSET 2 HEADSET 3 HEADSET 4
RADIO
REMOTES
A
FOOTSWITCH
B
RRC
POWER
