QTech Data Systems SMS Controller (SMSC) - Manual (Page 8)

QTech SMS Controller - Quick Start Guide – v1.4 – February 2014 8
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Status LEDs
PWR (Power) This LED is on when the device is powered on.
OK Flashes to show the device is active and not locked up.
ERR (Error) This LED flashes a number of times to indicate any errors.
COMS This LED shows the cellular communication status:
Off The cellular modem is off
Fast Blink (1s) Searching for network
Slow Blink (3s) Registered on network
On SMS in progress
RXD (Receive) This LED will flash when a SMS is received.
TXD (Transmit) This LED will flash when a SMS is sent.
Trouble Shooting and Tips
Symptom Cause Solution
Green PWR status LED
not blinking when power
applied Blown fuse Replace internal fuse. Use 2
Amp quick blow type.
Insufficient power
supply voltage Check supply and provide
suitable power supply
No texts are received Address book entry is
incorrect Check settings and then send a
“test” text to the user
Telco credit expired Top up as needed
SIM is not installed or
Reception/coverage is
poor Check SIM card and send a
“test” text to the user from the
installed site
Unable to control an
output via text
Note, users who are in
the address book, will
receive a text to say they
do not have control The u
ser isn’t
configured as being
able to use control
Check address book settings
and select the “allow control”
option for the user.
The wrong command has
been sent to the
controller Predetermined
formats are needed in
the text messages Simply text the SMS Controller
(even a blank SMS) and it will
tell you the format of the allowed
messages. This is also shown in
Live Status of the Workbench
software
Consider saving frequently used
texts as a template in your cell
phone
Intermittent Operation Telco signal strength
Send the SMS a “stats text.
Monitor it and/or upgrade aerial.