LeeLen JB-304 User Manual page 12

①The basic components are 1 door station, 1 indoor phone, and 1 power supply. The max. capacity t
is 4 door stations and 4 indoor phones. More components may cause malfunctions.
②One adapter can support only one video indoor phone while one transformer can support up to 4 indoor phones. But if there are 3
or 4 door stations, one more adapter or transformer is required, because the turning monitor function may be not workable.
③All door stations do not require power supply.
④Audio indoor phones do not require independent power supply. They can share the same power supply with video indoor phone.
⑤For easy connection the diagrams of C1, C2, and C3 can be applicable to projects accordingly.
⑥Video resistors may be helpful in case there is any problem with image display especially while 2 or more video indoor phones are
used. Please go to 4.2 for the resistors' usage.
⑦When there are 2 or more door stations, the address wires have to be cut so that every door stations have their exclusive address
codes. If there are, please go to 4.3 for door station address.
⑧ In case more indoor phones or door stations are required in diagram A,C1,C2,and C3, please connect them from the terminal wires
and try. If the image quality is not good enough and the image adjustors cannot help, please read 4.2 and try accordingly.
3.2.4 Electronic locks
There are various electronic locks. People from different countries may have different practice of
using electronic locks. Generally speaking there are two methods to release doors via door entry
systems. One is SIGNAL. Another is POWER. This system supports both. Users may adopt either
accordingly.
A) Diagrams for POWER electronic locks
B) Diagrams for SIGNAL electronic locks
12VDC
①P ease choose one of the abovementioned diagrams according to the electronic locks.
l
②
Instant output (Diagram A): 12VDC, 500mA.
③Please put the jumper of JPT on PT position once you wire as diagram A. But please put it on NC position once you wire as dia-
gram B.
(exampl e:
Lock1
COM
NC
NO
Lock2
JPT
PT
NC
18V
AF
VIDEO
GND
S1
S2
(exampl e: Door station Model No. 15)
Lock1
COM
NC
NO
Lock2
JPT
PT
NC
18V
AF
VIDEO
GND
S1
S2
10
Doo r station Mode l No. 15)
he manufacturer suggests