Troubleshooting, Technical specifications – Velleman HAMGSM133 User Manual
Page 15

HAMGSM133
V. 02 – 15/05/2012
15
©Velleman nv
9.
Troubleshooting
Problem
Possible reason
Possible solution
Green LED LD5 is off
No supply tension or inverted
polarity
Check power supply cable
Green LED LD5 flashes
cyclically at 1 Hz frequency
No GSM network available or signal
not strong enough
Change the position of the external
GSM antenna
The device does not send a reply to the
configuration SMS
Reply to the message with
command RISP is disabled or there
is no credit in the SIM Card.
Do not use the RISP command in
the SMS, or recharge the SIM Card.
During the first start-up LEDs LD1 and
LD3 do not light up alternatively
The device has already been
started
Completely reset the device using
the RES command.
The device does not react to the call
from an enabled number
The mobile used for the call has a
hidden ID
Enable sending caller ID on the
used mobile phone
The device cannot engage in the GSM
network
The PIN on the SIM Card has not
been disabled
Disable the PIN request from the
SIM Card
10. Technical specifications
GSM/GPRS module
SIM900 Quad (850/900/1800/1900MHz)
GPRS multi-slot
class
10/8
mobile station class
B
output power
class 4
2W @ 850-900MHz
class 1
1W @ 1800-1900MHz
power supply
9 to 32 Vdc stabilized (or Li-Ion battery 800~1000mAh (not included))
current
50mA (idle), 1A max.
relay outputs
2 (to control low tension loads), type SELV (<60Vdc)
max. current relay contacts
10A
digital inputs
2 (logic 1 = 5~32Vdc; logic 0 = 0Vdc
master users
8
dimensions
103 x 67 x 28mm (L x W x H)
weight ±100g
operating temperature
-10 ~ 55°C (14 ~ 131°F)
Use this device with original accessories only. Velleman nv cannot be held responsible in
the event of damage or injury resulted from (incorrect) use of this device.
For more info concerning this product and the latest version of this user manual, please
visit our website
www.velleman.eu
.
The information in this manual is subject to change without prior notice.
© COPYRIGHT NOTICE
This manual is copyrighted. The copyright to this manual is owned by Velleman nv. All worldwide
rights reserved. No part of this manual may be copied, reproduced, translated or reduced to any electronic
medium or otherwise without the prior written consent of the copyright holder.