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2140S
 
Specification

  “R、L、R+L”: choose right and left channel。
  “VOL+、VOL—”:volume adjustment。
  “PROG1、PROG2”:choose A. B signal channel
  “A、B、C、D、E”button: choose answer under testing,“UP , DOWN”button forpage up and down(student terminal should be with monitor)
l “CALL”:for calling and rob to answer
l Seat coding: short-circuit flake is required(details found in installation instruction)

2nd Floor,Block D,Xinsheng Industrial Park,Xintang Avenue,Tianhe District,Guangzhou,China. Tel:0086-20-85571786 FAX:0086-20-85578797 e-mail: info@jereducation.com sales2@jereducation.com 

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