www.cusamintercom.com
12
Ⅵ、
Attentions
●
The video and audio indoor extension phone can be used
both in networking and non-networking system.It's good for
non-networking upgrading to networking system.
●
If the door station promotes to the networking system, then
just replace the control chip of the non- networking door station
●
The non- networking system promoting to the networking
system needn't to change the wiring of the original unit, and the
networking (networking system is called floor controller) and
the non- networking system have the same wiring from the door
station to the module and indoor phones.
★
The wiring request of non- visible partial
ⅰ、
The section area should be bigger than 0.3mm
2
,if the length
of main line is less than 50M
ⅱ、
The section area should be bigger than 0.5mm
2
,if the length
of main line is between 50M and 100M,
ⅲ、
The section area should be bigger than 0.15mm
2
,if the
length of branch line is less than 20M,
ⅳ、
The section area should be bigger than 0.3mm
2
,if the length
of branch line is between 20M and 50M,
