Disconnections From The Main Supply; Introduction; Technical Specification - Teltonika TWCT22 User Manual

2.1 DISCONNECTIONS FROM THE MAIN SUPPLY

The device is disconnected from the main supply in the following order: primarily peripheral devices are
disconnected and lastly the device. For example:
In the AC main supply the relays circuit is disconnected by short-circuit back-up protection device
•
SF2, later the device and all sensors are disconnected by SF1 (figure 6.4.1).
In the DC main supply the relays circuit is disconnected by SF2, later the device and all sensors
•
are disconnected by SF1 (figure 6.4.2).
When PC is connected to the device, the computer is disconnected firstly and only later SF1
•
(figure 7.3.1).

3 INTRODUCTION

TWCT22 is a compact alarm monitoring and remote control device for electronic equipments with
support of Short Messages (SMS), phone calls, e-mails and GPRS connections. The device is
configurable through internal WEB server interface via GSM network and RS232 interface. Multiple
users can interrogate TWCT22 or be notified on configurable events.

4 TECHNICAL SPECIFICATION

• Supply 11-29V
• Power consumption max 7W
• Wireless modem:
Dual Band GSM 900/1800MHz
o
• 4 digital inputs
o Input resistance 10k
"0" (false) 0 – 3Vdc
o
"1" (true) 3 - 26Vdc
o
o Connector: terminal blocks
• 2 analog inputs.
o Voltage mode
Input resistance 60k
Voltage range: 0 – 10Vdc
o Current mode
Input resistance 480 +/-2%k
Current range: 4-20mA
o Resolution 10bit A/D converter
o Connectors: terminal blocks
• 4 relay outputs
o Rated load 240V 50Hz ~7A, 24V
o Total current 20A
o Connectors: terminal blocks
• Interfaces
RS232
o
Speed: 115200 bauds
Format: 8 bits
Parity: none
Stop bits: 1
500mA
10A
5