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[Connection]
Use 2 twisted pair cables with a modular jack fitted at each one end to connect the AI-MS900 to the
AI-900MS. Refer to the following table for the maximum recommended cable length between the two.
Cable type AWG24 (0.52 mm)
Distance
0.9 km
Connect as shown below.
AI-900MS and AI-MS900 connection
LINE
1234
LINE
* Mount the ferrite clamp (supplied with the AI-900MS card) on the cable in a way that the cable is looped one
turn as illustrated. (This countermeasure is for complying with the CE marking and FCC requirements.)
Note
When using a shielded cable, connect the shielded wire to the "FG" terminal of the exchange main frame.
Also, connect the unused cables, if included in a bundle of cables, to the same terminal.
24
AWG22 (0.65 mm)
1.5 km
Ferrite clamp *
2 twisted pair cables
Ferrite clamp *
2 twisted pair cables
1234
Ferrite clamp
SFC-10
AWG20 (0.82 mm)
2.3 km
AI-900MS
CN1
for master station
CN2
CN3
for master station
CN4
AI-900MS card
1
2
Line 1
3
4
1
2
Line 2
3
4
Front view of
the circuit board
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