J&R Technology Limited
A Safe Voice In Global Communications
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Industrial Analog Telephone Circuit Board for Hands free Speed Dial
The Hands-Free Telephone Kits JR-Kits-01 can be assembled with a variety of cabinets, it could work in railway/metro station, elevator, ATM machines side, etc.
This board is matching with most PABX/PBX systems, and it is simple to install and use.
Main Features
- Analogue phone with hands free
- One push button for speed call
- Wearable, waterproof, moisture proof, Vandal resistant and tamper-resistant hardware
- Lightening protection to ITU-T K.21
- Automatically release the line when the other far end hang up first
1. OPERATIONS & USE
Before making a call, please ensure that every parts are connected with the board. (Please note that the Microphone has positive and negative points, the red wire is positive, black wire is negative.)
Receive/end a call:
Press push button when the phone rings Press push button again when call is finished
Dial:
Press push button to make a call
Programming speed dial numbers:
1.Connect phone line
2.Press push button
3.Press “*” and hold for 2 seconds, then you will hear “DuDu” tone twice
4.Press “8” twice
5.Press 1st blank key of the mini keypad (beside the 3 key)
6.Input numbers
7.Press push button to finish programming
2. TECHNICAL SPECIFICATIONS
| Dialing Data: | LD to : BS 6305 : 1982, Part 4.4.2 Impulse rate : 10 ips Mark/space ratio : 2:1 MF: BS6305 : 1982, Part 4.4.3 MF impedance : Class A MF transient voltage : Class A Dialing tones meet international standard requirements |
| Power Supply: | Drawn from telephone line. |
| Temperature: | Operating: -30°C to +65° C Storing: -35°C to +70° C |
| Relative Humidity: | Up to 95% (non-condensing). |
Applications 0f JR Analog 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 Analog 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