Interfaces & connections
24 / 41
Mounting and Installation, Technical Description, T 811 065 en
3.6.1
Stub line connection
Notice
According to EN 54, a maximum of 32 detectors (total of aut manual detectors) are permitted to be in-
stalled on one stub line.
B7-CPB
1
6
X12
1
3
4
5
6
2
6 5 4 3
2
1
USB 501
1
3
4
5
6
2
6 5 4 3
2
1
USB 501
1
3
4
5
6
2
6 5 4 3
2
1
USB 501
S
H
L
D
G
N
D
L
1
G
N
D
S
H
L
D
L
2
1
2
3
4
5
6
7
8
MCP 545X
MCP 545N
S
H
L
D
G
N
D
L
1
G
N
D
S
H
L
D
L
2
1
2
3
4
5
6
7
8
MCP 545X
MCP 545N
1
2
3
4
5
6
MCP 545
G
N
D
S
H
L
D
S
H
L
D
G
N
D
L
1
L
2
Fig. 16 Stub line connection
3.6.2
Connecting detector base USB 501
The MCD 573X / MCD 573X-S / CCD573X automatic detectors can be used in the standard USB 501 detector base (and in its
variants). Further, a RAL720X repeat signal or a BX-API base siren can be connected as required to any USB 501.
1
3
4
5
6
2
USB501
6 5 4 3 2 1
L1
L2
GND
GND
SHLD
SHLD
Repeat signal
_
+
Fig. 17 USB 501 connection
1
3
4
5
6
2
6 5 4 3
2
1
L1
L2
GND
GND
SHLD
SHLD
rt
rt
sw
ws
O N
1
3
2
USB501
BX-API
Fig. 18 RAL720X connection
