Key Management Systems Ltd
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P a g e
System Wiring Example 1
This image shows a system wired to its local power supply with KMS BUS data
connections direct to the System Controller.
In this example KMS are powering the locks directly. This is the recommended
installation configuration. Each Lock Controller does provide a normally
open/normally closed volt free relay in order to trigger external equipment, for
example a powered door closer or door entry system.
Note:
Always isolate power before making or breaking connections.
Typical example of daisy chained Reader Interfaces and Lock Controllers utilising local
power supplies within each cabinet. This assumes the System Controller is in a
separate cabinet with BUS runs of M2S, S2M and 0v back to the System Controller or
next cabinet. Ensure BUS runs are made using Cat5, Cat5e or Cat6 cabling. Copper
only no CCS or CCA to be used.
OM
RO
N
G6
E -134P
-ST
-US
12
VD
C
Lo
ck
02
20
00
09
1
2
3
4
5
6
7
8
En
D
e
OM
RO
N
G6
E -134P
- ST
-US
12
VD
C
Lo
ck
02
20
00
09
1
2
3
4
5
6
7
8
En
D
e
D
O
O
R
RT
E
N
/C
A
U
X1
A
U
X3
A
U
X2
C
O
M
D
O
O
R
RT
E
N
/C
A
U
X1
A
U
X3
A
U
X2
N/
O
C
O
M
To Lock
Fit MOV!
To Lock
Fit MOV!
Wire SPDT relay to trigger
external equipment I.e
powered door closer
S2M
M2S
0V
0v
SIG
12v
LED
1
2
1
2
S2
M
LE
D
M
2S
LE
D
S2
M
LE
D
M
2S
LE
D
0v
SIG
12v
LED
Wire to local 12v PSU
N
/O
To
Readers
Use terminals 1,2 or 3
for Input returns
1 2 3 1
2 3
Ch1
Ch2
+
1
2V
0
V
1 2 3
4 5 6 7 8
+
12
V
0
V
1 2 3 1
2 3
1 2
3 4 5 6 7 8
Ch1
Ch2
Connections 2,5,8 =0v
Connections 3,6 =12v
To System
Controller
