Remote Interface (TAM-B)
The TMC-4 can be accessed remotely by an external contact
closure between a station external input and ground. The TAM-
B provides this closure after being accessed as an extension of
the telephone system. When the external inputs are activated:
1
.The unit connects the respective station, the station's in-use
LED illuminates. A ready beep is sent every 2 seconds to the
calling station. The station is reserved until released by the
TAM-B, the user, or the TMC-4.
2. The TMC-4 waits for DTMF tones or a disconnect code. If
key pad numbers [0] through [9], [#] [0] through [#] [9], or [*]
[*], or [*] [
1
] through [*] [9] are pressed, the controller will try
to send the corresponding command. If successful, a valid tone
will be heard, if unsuccessful, an error tone will be heard.
3.After a preset time, if the user does not hang up or send the
disconnect code ([*] [0]), the TAM-B will automatically hang up.
Releasing a station directly from the TMC-4
If at any time it becomes necessary to free the device cur-
rently being controlled, it can be released directly from the
TMC-4
To release a station:
1
. Press [*]. The in-use LEDs of all stations currently in use will
flash.
2. Enter the number of station to be released. That station will
be released and the stations light will go out.
Service
There are not user-serviceable parts within the unit. The war-
ranty may become void if repairs are by other than Bogen
Factory Service Department. For information on warranty
repair, contact the Factory.
Technical service is available for the Bogen Applications
Engineering Department.
Bogen Communications, Inc.
50 Spring Street, Ramsey, NJ 07446
U.S.A.
Phone (20
1
) 934-8500
Fax (20
1
) 934-9832
Specifications
Interface
LEDs
4 Yellow STATIONS IN USE
1
Red ERROR
1
Green LEARN
1
Green POWER
Telephone style keypad
STATION INPUTS terminal block
EXTERNAL INPUTS terminal block
INFRARED SIGNAL OUTPUTS RCA jack
Digital Section
CPU - Intel 80C32
1
2MHz
Memory -
1
each 27C256 EPROM
3 each 28C64 EEPROM's
Infrared Section
Detectable IR transmission schemes:
1. Envelope Modulation
2. Pulse Modulation
Carrier Modulation Range: 25-92 kHz
Pulse Modulation Width:
1
5x
1
0-6 sec.
Power Requirements
1
20 VAC, 60 Hz, 0.
1
A
5
