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Half-Duplex wireless walkie talkie intercom system
Half-Duplex wireless walkie talkie intercom system can bring the walkie talkie into the wired intercom system, which can receive and transmit signal by half fullduplex model. WTI200 is suitable for TV station, communication command center, outside broadcast vehicle, theater, project test field, and other applications which communication is required.
Characters
l Interface between walkie talkie and intercom system
l Half full-duplex communication model
l 2-wire and 4-wire devices connectors
l Working frequency: 400-470MHz
Technical index:
RF output/input impedance :50 ohms
Launch and modulate rate :576 kbps
modulation system is GFSK ,BT=0.6
wireless frequenncy range : 2401.808203~2479.398926MHz
frequency space: 891.871KHz
receive sencitivity:BER0.1%,-96dbm
launch and receive distance is 200m
input voltage is 110/220V
Equipments connection
1. Connect To 2-Wire System
2-core with shield audio cable is used to connect 2-wire connector (18) of WTI-200 and any 2-wire intercom device. Set 2-wire/4-wire selection switcher (10) to “2-wire” position. Connector (18) is a pair of loop through XLR-3 connectors.
The pin definition is as follow:
Pin1 -- Common, Cable shield
Pin2 – Null
Pin3 – Audio;
2. Connect to 4-wire System
Connector (17) is a 4-wire equipment connector. When use this connector, the 2-wire/4-wire selection switcher (10) at front panel should be set to “4-Wire” position.
Connector (17) is a RJ-45 connector. Face rear panel, the pin definition (from right to left) is as follow:
Pin1 – Audio, - input
Pin2 – Audio, + Output
Pin3 – Common
Pin4 – PTT (Low level is valid)
Pin5 – PTT (Low level is valid)
Pin6 – Common
Pin7 – Audio, -Output
Pin8 – Audio, +Output
Advantages of us:
1)any kind of express you want
2)packing as customer's requirement
3)reasonable price with high quality
4)OEM is welcome
5) a trial order or samle orders are also welcomed
7)Excellent after sale service
Payment
You can pay us through T/T, paypal
Price term: FOB beijing
Full payment should be made before we send goods to you
The customer don't have to responsible for any tax or bank charges by their countries.
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