Standard Features Im-900; System Description Im-900E; Standard Features Im-900E - Setcom IM-900 Installation And Operation Manual

2.2 Standard Features IM-900

- Up to 10 headset positions
- All headset positions hear the radio and have intercom access
- Automatic operation - no master station adjustment controls
- RFI and EMI protection
- Officer and Driver/Pump Panel Stations have radio transmit access (IM-900)
- Only the keying station transmits on radio Note: Captains position will override the Driver.
- Weatherproof stations for exterior mounting
- Hand microphones and cabin speakers may be retained and used normally
- Radio transmit headset can be used with a portable radio with the proper adapter
- Footswitch port (can provide one or both radio transmit positions with a Footswitch or Push Button Station)

2.3 System Description IM-900E

The IM-900E is similar to the IM-900 with a few important exceptions. The 900E has a total of four radio access
circuits as compared to two for the IM-900. An AUX port on the IM-900E replaces the built-in footswitch port on
the IM-900. If a footswitch is needed for the IM-900E an ES-907 extension station with Footswitch Port can be
used. The AUX port can be used as a pump panel port to plug in a MS-920 Aerial System or other independent
radio access station for EMS/Rescue or command vehicles.
The Auxiliary Port has full radio and
intercom access and can be used for a
PS-900 Pump Station. PS-900EMS Rear
Compartment Radio Access Station, or
for daisy chaining a MS-920 Master
Station and an AS-920 for use on an
aerial.

2.4 Standard Features IM-900E

- Up to 10 headset positions
- All headset positions hear the radio and have intercom access
- Automatic operation - no master station adjustment controls
- RFI and EMI protection
- Officer and Driver and two additional ports have radio transmit access
- Only the keying station transmits on radio
- Weatherproof stations for exterior mounting
- Hand microphones and cabin speakers may be retained and used normally
These positions all have radio access and
are on independent circuits. Key any of the
four positions and it will lock out the other
three microphones, only the keying
operator's voice will be transmitted. All
other positions will still have full duplex
access to the intercom.
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