Toa VS-900 - Manual (Page 33)

33
12.6. VS-900RS Substation Interface Card Connection
12.6.1. Substation and VS-900RS connection
The VS-900RS can be interfaced with up to 16 substations.
[Connection]
Use a 2-core shield cable to connect the substation to the VS-900RS. Refer to the following table for the
maximum recommended cable length between the two.
Cable type AWG24 (0.52 mm) AWG22 (0.65 mm) AWG20 (0.82 mm)
Distance 0.5 km 0.8 km 1.3 km
Connect as shown below.
Connection of the RS-150/-160/-170/-180 to the VS-900RS
RS-150, RS-160,
RS-170 or RS-180
To line A (orange)
To line B (brown)
To line C (black)
2-core shielded cable
2-core shielded cable
VS-900RS
CN1
CN2
CN3
CN4
Line 1
Line 2
Line 5
Line 6
Line 9
Line 10
Line 13
Line 14
Line 3
Line 4
Line 7
Line 8
Line 11
Line 12
Line 15
Line 16
A
B
C
A
B
C
A
B
C
A
B
C
A
B
C
A
B
C
A
B
C
A
B
C
A
B
C
A
B
C
A
B
C
A
B
C
A
B
C
A
B
C
A
B
C
A
B
C
Front view of
the circuit board
Note
The cables coming from the substations are bared at their ends.