A member of the Olancha Group Ltd
Registered in England No. 08405712
VAT Registration No. GB163 04 0349
Siretta Ltd
Basingstoke Road
Spencers Wood
Reading
Berkshire RG7 1PW
sales
fax
email
web
+44(0)118 976 9014
+44(0)118 976 9020
www.siretta.co.uk
38
ZETA Series
GPRS/UMTS/LTE Terminal with GPIO
ZETA State
Pin-4 (ON)
Pin-3 (OFF)
Modem ON/OFF
OFF
ACTIVE
ACTIVE
OFF
ON
ACTIVE
ACTIVE
ON
ON
NOT-ACTIVE
ACTIVE
Switches OFF
OFF
NOT-ACTIVE
ACTIVE
OFF
OFF
ACTIVE
NOT-ACTIVE
Switches ON
ON
ACTIVE
NOT-ACTIVE
ON
Table 14.
ZETA modem states
Modem Power Supply
Figure 28.
Siretta Modem PSU
The Siretta power supply for the range of modems provides an industry standard
output which is compatible across the range of Siretta modems. With a stable 12V
output voltage, the Modem PSU offers a wide input voltage as well as being highly
efficient. Please turn to
page 44
for ordering details.
Power Cable
Figure 29.
Siretta Modem power cable
The Siretta RJ12 open ended power cable provides an easy way to power the
modem with your end equipment using an existing power source. It also allows a
convenient way to control the modems basic functionality including power on, power
off, reset and ignition control lines. The cable is compatible across the entire range of
Siretta modems and is colour coded for easy integration. Please turn to
page 44
for
ordering details.
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