Phonetics SENSAPHONE EXPRESS II, User Manual

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5 Chapter 2: Installation
from being damaged in the event of an extended power outage. When the battery runs down to
9V, the unit will automatically disconnect it, preventing deep-discharge damage. The battery will
remain disconnected until it charges back up to 12.3 volts. The battery should provide 5 years of
service before needing replacement.
NOTE: Have battery serviced by qualified service personnel only.
The main motherboard and plug-in cards also include a 3V lithium battery to retain user-recorded
messages and programming when the unit is turned off. Each battery will provide two years of
backup time while the unit is turned off and up to 10 years of intermittent use.
NOTE: Have the lithium battery serviced by qualified service personnel only.
TURNING Express II ON
Now that Express II has power, the ON-OFF switch may be turned on.
When the unit is turned ON, it will perform a series of diagnostic tests of its internal circuity.
When all of the tests have been completed, the unit will say, "Express II, OK." The unit is now
operating and will respond to keypad commands and answer telephone calls.
12V
+OUT-
24V
+OUT-
+MIC- BAT
+IN- OUTPUT
RELAY
POWER
A B
SENSAPHONE
R
E
XPRESS
II
MONITORING SYSTEM
ABC
2
DIAL OUT
DEF
3
DIAL IN
MNO
6
SOUND
JKL
5
INPUTS
GHI
4
MESSAGES
PRS
7
POWER
TUV
8
OUTPUTS
WXY
9
DATA LOG
ENTER
CODE
HALT
ALARM
CANCEL
OPER
0
SYSTEM
INQUIRE
STATUS
ALARMS
LOCK
UNLOCK
DISPLAY
1
PHONE
PROGRAM
OFF ON
OFF ON POW
A
Figure 3: On/Off Switch Location