Operation Instructions
7
Installation & Operation
1. Place the host unit on desk for staff use and stick the extension unit on glass screen
for customer use. Insert the extension unit cable into the EXT port on host unit.
The units should be kept at a certain distance for optimal performance.
2. Plug the DC 12V power adapter into the mains and its other end into the
DC socket of the host unit.
3. Turn on the power switch after all cables are connected properly.
4. Gradually turn the volume knobs for host and extension units to increase the
volume to appropriate levels.
5. Sound should come out from the external extension unit when speaking towards
the microphone of the internal host unit and vice versa.
Talk-back System
DA-235
输入
录音
分机
分机
DC
=
12V/1A
-
+
①
外音量
开关
内音量
③
②
⑤ ⑥ ⑦ ⑦
④
⑤ AUX IN: accepts external audio source such as a computer via a 3.5mm cable.
⑥ REC OUT: outputs audio signals of both internal and external units, which
can be used for recording of bank teller.
⑦ EXTENSION: accepts extension unit.
