Viessmann Vitogate 300, Инструкция по установке и обслуживанию, Страница: 10 / 28

10
The Viessmann LON is designed for "line" bus topol-
ogy with a terminator at both ends (accessories).
The transfer distances for LON are subject to the elec-
trical properties of the respective cable. For this rea-
son, only use the specified cable types. Use only one
cable type within each LON.
Cable types (on site):
■ 2-core cable, CAT5, screened
■ JY(St)Y 2 x 2 x 0.8 mm (telephone cable)
Observe the requirements for cabling and operation of
the LON interface FTT 10-A.
All Viessmann appliances are connected with RJ45
connectors. The Viessmann LON always requires
cores "1" and "2" plus the screen. The cores are inter-
changeable.
Note
When connecting on-site components (including a PC/
laptop), observe the insulation requirements of IEC/EN
60335.
Connection with LON cable
C
A A B
D
C
D
Fig. 3 Installation spacing
≤
7 m
A
Vitotronic control unit
B
Vitogate 300
C
Terminator
D
LON cable, 7 m long
Connection with LON cable and LON coupling
C
E
A A B
E D
D D
E E D
D
C
D
Fig. 4 Installation spacing 7 to 21 m
A
Vitotronic control unit
B
Vitogate 300
C
Terminator
D
LON cable, 7 m long:
Max. 3 cables between 2 devices
E
LON coupling
Connection with on-site cable and LON plug
C
A A B
E
C
E
F
≤ 900 m
D D D D
Fig. 5 Installation spacing
≤
900 m (with LON con-
nector)
A
Vitotronic control unit
B
Vitogate 300
C Terminator
D
LON plug
E On-site cable
F
Up to 30 subscribers
Installation sequence
Making the LON connection
5837535
Installation