Half-Duplex wireless walkie talkie intercom system

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.