Hanna Instruments HI 504901 - Manual (Page 6)

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TECHNICAL DATA
Max output power 2 W for EGSM900; 1 W for GSM1800/1900
SIM interface 3V type SIM card
Antenna Dual-band antenna (900/1800/1900 MHz)
RS232 channels towards instruments
For connection of an instrument with RS232,
baud rate up to 9600 (limited by the instrument)
RS485 channel towards instruments
For connection of all instruments with RS485 in the
same bus; baud rate up to 9600
Digital input channel Supporting mechanical relays or open-collector outputs
Digital output channel Open collector output, 5 mA / 30V max.
RS232 auxiliary port towards PC
D-Sub female connector, baud rate up to 9600
Installation Category I
Power Supply 12 VDC adapter & internal rechargeable battery
(12V / 0.8 Ah) for backing up
Power Consumption 6 VA max.
Environment 0 to 50 ºC; max. 85% RH non-condensing
Enclosure ABS case, IP54
Dimensions 240 x 200 x 98 mm (9.4 x 7.9 x 3.9”)
SAFETY INFORMATION
Radio devices have limitations in the vicinity of electronic
devices.
• Unplug and turn off the unit in hospitals or near medical
devices like pacemakers or hearing aids. The module may
interfere with the operation of these devices.
• Unplug and turn off the unit when flying. Secure is so that
it can not be powered inadvertently.
• Unplug and turn off the unit near petrol stations, fuel
depots, chemical plants or blasting operations. The mod-
ule can disturb the operation of technical equipment.
• Interference can occur if the device is used near televi-
sions, radios or PCs.
In order to avoid possible damage, it is recommended to
use only the Hanna Instruments accessories. They have been
tested and shown to work well with this device. However,
accessories are not covered by the warranty.
MAINTENANCE & SAFETY TIPS
• SIM card: do not bend or scratch the SIM card or expose
it to static electricity.
• Wipe the module housing with a moist or antistatic cloth.
Do not use a chemical cleaning agent.
• Do not expose the GSM module to any extreme environ-
ment where the temperature or humidity is high.
• Do not attempt to disassemble the unit. There are no user
serviceable parts inside.