ChinaPST PST-VDA-R2, Руководство пользователя

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And then press “Unlock” → open the door → press “
*
” to exit.
(4)
Receive call from indoor unit:
Call comes → Rings → screen shows the indoor unit’s room number → press
“ ” to answer.
Press “ 1-9 ” to add talking time and press “
*
” to exit.
(5) If you receive a second call in the guard station while you are talking, it will shows
the caller’s information. You can put the second caller on hold.
11. Accessories
11.1 Network Cable Assembly
(1) The multi-apartment intercom system supports 485 communication signal.
(2) There are 6 signal wires: NA (Audio Intercom), NB (Audio Intercom), TV -
(Video), TV+ (Video), NT (485+), NR (485-).
(3) There are 9 interfaces in Network Cable Assembly. And you can connect 3 gate
entry stations with it maximum.
Each output line from Network Cable Assembly can connect 50 outdoor stations.
For example:
①
Line connect 50 outdoor stations in Area A in series connection.
②
Line connect 50 outdoor stations in Area B in series connection.
(4) The Network Cable Assembly has been adjusted to the optimum settings. The