10
Large complex
3000 m
5000 m
1.5 mm
2
64
2400 Baud
Medium
neighbourhood
5000 m
7000 m
1.5 mm
2
16
300 Baud
Point-to-point
connection
10000 m
10000 m
1.5 mm
2
1
300 Baud
4.1.5
BUS signal specifications for GE552Y051
M-Bus system
Designation
Condition
Minimu
m
Typical
Maximu
m
Measure
ment unit
Number
of
devices
per
segment
n
GE552Y051
0
20
Transmission rate
T
≤ 382
300
2400
9600
Bd
Bus voltage
U
IM=0…400mA
12
42
V
Bus
Voltage
(Master)
U
M
IM=0…400mA
24
40
42
V
Bus
Voltage
(slave)
U
S,R
≤ 1.5
±21
±42
V
Bus current
I
M,V
GE552Y051
0
90
mA
DC Bus current
I
M,K
GE552Y051
130
500
160
mA
Current (slave)
I
S,R
US=21…42V
0.75
1.2
1.2
mA
Transmitted
current (slave)
I
S,S
US=21…42B
11
20
mA