User's Manual

5
ON/OFF the Microphone & Speaker by
pressing their respective buttons.
 After the call is terminated, Microphone
and/or Speaker with their corresponding
LED’s return to their stand-by status.
III. Fault Detection
To enable CTC-808 to detect low battery, battery
disconnection or AC failure conditions, it has to be
learnt into the Social Alarm Panel (Medical Alarm
Panel) first. The learning process is listed as below:
a. Press both the Answer and Speaker buttons for
3 seconds and release both buttons until you
hear a long beep. Then CTC-808 will transmit a
learn code.
b. If the Medical Alarm Panels successfully
receives a learn code from CTC-808, CTC-808
is able to transmit a signal of low battery, battery
disconnection or AC failure to the Control Panel
after detecting those faults.
z Low Battery
- 30 seconds after CTC-808 detects the low battery
condition, it will transmit a signal of low battery to
the Medical Alarm Panel for notification.
- 30 seconds after CTC-808 detects the battery
restore, it will transmit a signal to the Medical
Alarm Panel for notification.
z Battery Disconnection
CTC-808 can detect the absence of battery in the
following cases:
 Battery not connected
 Battery failure.
- 30 seconds after CTC-808 detects the battery
disconnection, it will transmit a signal of battery
disconnection to the Medical Alarm Panel for
notification.
- 30 seconds after CTC-808 detects the battery
connection, it will transmit a restore signal to the
Medical Alarm Panel for notification.
z AC Failure Detection
- 30 seconds after CTC-808 detects the AC failure
fault, it will transmit a signal of AC failure to the
Medical Alarm Panel for notification.
- 10 seconds after the AC Power resumes, it will
transmit an AC power resume signal to the Medical
Alarm Panel for notification.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference,
and
(2) this device must accept any interference
received, including interference that may cause
undesired operation.