Registered in England No. 08405712
VAT Registration No. GB163 04 0349
Siretta Ltd
Basingstoke Road
Spencers Wood
Reading
Berkshire RG7 1PW
sales
email
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+44(0)118 976 9000
www.siretta.com
40
ZETA-xxP Series
Hardware Manual
rev
D
Switching the Modem ON/OFF
Power on the ZETA-xxP
The ZETA-xxP modems have several options to power on. The 2 main options are
shown below:
1)
Auto power up using the built in power controller. This process is controlled
by default within the modem to control the modem functionality and allows for
automatic power up when power is supplied. The auto power on control will
automatically power up the modem as required and manage its status whilst it is
online.
2)
Manually power up the modem using the PWRON_IN pin on the RJ12 power
connector (Pin 4). When this pin is connected to logic high (0.5-42V) for >0.5
seconds the modem will power up.
NOTE
- The modem is fully operational after it has powered on and able to send AT
commands. This may take anything from 2 to 40 seconds depending on the startup procedure.
to connect to the fastest available network and will fallback to slower networks as available.
This may take control of the modem and is network and technology dependant.
Power off the ZETA-xxP
The ZETA-xxP modems have one option to power off as shown below:
1)
Manually power down the modem using the PWROFF_IN pin on the RJ12 power
connector (Pin 3). When this pin is connected to logic high (0.5-41V) for >0.5
seconds the modem will power off.
