Functions and Features:
l Having all functions of HBT-A bus system substation.
l Having alarm relieve function. Press the Relieve button on the
unit to relieve alarm.
l Having privacy function. Press the Relieve button on the unit for
five seconds to enter the privacy state to prevent master station
Installation and Operation
1) Substation speaker
2) Substation Alarm key (CALL)
3) Substation head
4) Substation Relieve key
2. Technical Parameters
Working voltage: DC10-22V
Dimensions of substation: 130x110x40mm (LxWxH)
Output power of speaker: 100mA
1. Installation and Operation
There are five binary coding switches on the rear of the unit.
Positions “ON” of each switch represent 1, 2, 4, 8 and16
respectively. For example, the coding of No.3 substation is 1+2, the
switch positions of 1 and 2 shall be moved to “NO”; the coding of
No.14 substation is 2+4+8, the switch positions of 2, 4 and 8 shall
be moved to “NO”; the coding of No.19 substation is 1+2+16, the
switch positions of 1, 2 and 16 shall be move to “NO”. The master
station can confirm the substation without restarting the master
station after coding.
2) Connecting method
Connect the binding posts 1, 2, 3 and 4 on the substation to
corresponding binding posts 1, 2, 3 and 4 on the master station with
a four-wire cable.
Turn on the master station after connecting. If the alarm indicator
light on the substation blinks every few seconds, the substation is
in normal working state. Or the substation is not in normal working
state if otherwise.
4) Recording method
The audio signal will output from the REC+ and REC- on the binding
post plate of the substation. The substation can record at any time
after connection. The substation can be also used as monitor head.
5) Door lamp connecting
The anode on the rear of door lamp shall be connected to M+ on the
binding post plate of the substation and the cathode shall be
connected to No. 4 binding post.
6) Alarm and intercoms
Press the CALL key on the panel of the substation. The music from
the master station will sound. Intercoms can be achieved after the
master station has chosen the substation. There is a jack of
handheld alarm machine on the rear of the substation. The door lamp
will blink when the substation or handheld alarm machine alarm to
the master station.
7) Alarm Relieving
If the substation or handheld alarm machine has alarmed to the
master station, press the Relieve key on the panel of the substation
to relieve the alarm.
8) Privacy function of substation
Press the Relieve button on the unit for five seconds to enter the
privacy state to prevent the master station monitoring the
substations. Press the CALL key on the substation to relieve the
Grounding wire (No. 4) shall be correctly connected when connecting
the substation. If the grounding wire (No. 4) has not been correctly
connected, the master station can not select one of No. 1-20