11
S
WITCH
N
O
.
S
ETTING
F
UNCTION
OFF
Normal Operations
S1: Default
Load
ON
Load defaults
OFF
CID protocol
S2: Panel
Protocol
ON
SIA (Level 1 & partial Level 2)
OFF
Normal Operation
S3: Battery
Mode
Override
ON
Battery Mode Override enabled
OFF
Normal Operations
S4: LED
Function
ON
RSSI Measurements
Battery Mode is a low current default that extends battery life to its maximum in
accordance with UL requirements. In this mode, the amp-hour rating of the
battery is approximately equivalent to the number of days that the unit will
operate in standby before the battery is depleted. (E.G. a 1.4 AH battery will
operate the unit on standby for approximately 1.4 days.)
Sometimes it is convenient to allow full power operation while on Battery (such
as finding the optimum location to install using the RSSI function). S3 will allow
the user to override the battery mode. This switch must be returned to the OFF
position for normal operation, and for a proper UL installation.
C. LEDs
Normal Mode: Upon initial power up, the 5 LEDs on The 2550 will begin to
function as follows:
LED
LED
S
TATUS
LED
M
EANING
P
OWER
LED
(#1)
OFF
No AC power is present
On
AC Power is present
GREEN
Flashing
Operating on Battery power only (all other LEDs are
disabled)
RED
Flashing
Operating on Battery power and the battery voltage is
lower than 10.2 V (all other LEDs are disabled).
T
ELCO
LED
(#2)
OFF
Phone line is not monitored
On
Phone line is OK (Telco primary mode), Panel or
Extension is on-hook
GREEN
Flashing
Panel or Extension Line is off-hook
RED
On
Phone line Trouble Condition
