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Vs-900rs substation interface card connection – Toa VS-900 User Manual

Page 33

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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.