J&R Technology Limited
A Safe Voice In Global Communications
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Industrial 3G Telephone Circuit Board, 3G PCB for Heavy Duty Industry
Main Features
- One push button for SOS
- Call Standard SIM card
- Working Frequency Range: WCDMA850/1900/2100MHz
GSM850/900/1800/1900MHz
- Operating voltage : 7.4 V-12V
- Can be DC powered or Battery Powered
- Idle current: 75mA
- Off hook current: 160mA
Remote Programming call number
Each unit can be simply reprogrammed from any location by SMS code. The Unit will send a confirmation “SMS” to the sender showing the new numbers programmed.
Automatic Diagnostic reporting
The Unit will automatically send a message when one or more of the following conditions occur.
1). Battery state below 9V
2). Faulty switch or keypad
3). LED indicator condition
Manual Fault diagnosis
Upon requesting a Fault Diagnosis from the phone, the following information will be sent in the form of an ”SMS” as below, It will save your time and cost to check the phone status by being on-site.
1). Signal status
2). Battery status
3). Keypad/Switch status
4). Indicator light condition
5). Preprogrammed Call number
6). Preprogrammed SMS reporting number
Applications 0f JR 3G Telephone Circuit
This VoIP Telephone Circuit is ideal for railway applications, tunnels, highways, campus, parking lot, power stations, oil&gas station, marine applications, underground mining, retail banking, clean rooms, firefighter, taxi, industrial, prisons, parking-lots, power stations, chemical plants, etc.
Other characteristics of JR 3G Telephone Circuit
handheld, emergency, handsfree, auto dial, for harsh environments, with LCD display, with video camera, paging, ringdown, outdoor, built-in, with loudspeaker, with flashing beacon, with indicator lights