Wavenet Technology Pty Ltd. BM3900M Manuel D’Utilisation
Installation________________________________________________ Boomer-III User Manual & Integrator’s Guide
Copyright Wavenet Technology © October 2003
36
BM310012WT05
LED Interface Definitions
J1
Pin #
Signal Description
Signal
Active
State
13
LED
0_
MSGWTG
Message
waiting
Output
Low when message waiting
14
LED
1_
INRANGE
In range
Output
Low when modem in-range
15
LED
2_
LOWBAT
Low
battery Output
Low when battery is <3.5V,
High when battery is >3.6V
High when battery is >3.6V
Low Battery
The Low Battery signal is held active low whenever the supply voltage
drops below an acceptable level and deactivated when the voltage level
becomes acceptable again. The transitions will occur at the same time
as the low battery event occurs (or would occur if the event was
activated). Note that in the case of a very fast transition between
voltages, it may take up to 20 seconds for the modem to confirm a
change in battery status.
Message Waiting
The Message waiting signal is held active low whenever there is at
least one complete message waiting in the outbound buffers (including
the reread buffer).
In-Range
The In Range signal is held active low whenever the modem is in RF
reception range.
The Low Battery signal is held active low whenever the supply voltage
drops below an acceptable level and deactivated when the voltage level
becomes acceptable again. The transitions will occur at the same time
as the low battery event occurs (or would occur if the event was
activated). Note that in the case of a very fast transition between
voltages, it may take up to 20 seconds for the modem to confirm a
change in battery status.
Message Waiting
The Message waiting signal is held active low whenever there is at
least one complete message waiting in the outbound buffers (including
the reread buffer).
In-Range
The In Range signal is held active low whenever the modem is in RF
reception range.