POTSwap v1.00 User Manual JA16-UM
Page 11 Rev: P09 Date: 01/03/18
© Copyright 2020 Janus Remote Communications
Specifications subject to change without notice
All Rights Reserved See website for latest revision. Not intended for life support applications.
5. External Interfaces
5.1 Front Panel
Received Signal Strength Indicator
A stack of 4 green LED’s on the left side of the front panel indicate the relative signal strength of the cellular radio
signal. It is analogous to the ‘bars’ display on a cellular telephone handset.
RSSI INDICATOR
LED’s ILLIMINATED
SIGNAL STRENGTH
RSSI (dBm)
4
Excellent
-73 or better
3
Good
-83 to -74
2
OK
-93 to -84
1
Marginal
-109 to -94
If no signal is detected, the LED’s on the stack alternately illuminate from bottom to top and back in a ‘scanning’ manner.
GPS INDICATOR
The bottom (#1 ‘Marginal’) LED on the RSSI indicator will blink several times for 1 second every 10 seconds to
indicate a GPS location fix is available. This indication is independent of the cellular signal strength indication. See
section 7 - GPS.
LED Operational indicators
LED
LED COLOR
INDICATION
POWER
Red
Power status
CELLULAR
Yellow
ellular radio status
STATUS
Green
System status
General status conditions can be inferred as follows:
Green and Yellow LED continuously ON: during initialization
(following the application of power or a manual RESET).
Yellow LED blinks every 2.5s – wireless registered on network.
Yellow LED ON - when cellular call connected.
Green LED fast blink - when on hook (no call in progress)
Green LED - ON when off hook (during call)
POWER (RED) LED
LED STATUS
INDICATION
ON
System is powered
OFF
System has no power
Blinking
System Fault
Figure 4 Front Panel
