Karel MS224, Installation & Maintenance Manual

Page: 67 / 81

Karel MS224 Installation & Maintenance Guide
Edition 3.2
64
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M
OUNTING
The IA12 motherboard comes installed in the cabinet. It stays on the brass card
holders that are attached to itself by screws.
The EXP-IA12 Expansion Board is mounted on the motherboard with brass
card holders and screws. The communication between the IA12 motherboard
and EXP-IA12 card is established by a 20-pin flat cable. The following figure
illustrates this connection .
Figure B-19
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C
ABLING
For the data line :
The IA12 ISDN Adaptor comes with the ISDN data cable. Like the telephone
data cable of the consoles and feature phones, the ISDN data cable is formed
up of two parts. One is a cable with a 6-pin RJ plug at both ends and the other
one is a connection box. The connection box is not used for connecting IA12 to
the MS224 system.
The signals on the connection box of ISDN data cable are the same as the
signals on the connection box of telephone data cable.
For making the data connection of the IA12 ISDN Adaptor :
1) The RJ plug on the ISDN data cable must be connected to the ISDN
socket on MS224 CPUKON card.
2) The RJ plug at the other end of the ISDN data cable must be attached to
the corresponding RJ socket at the bottom part of the IA12 motherboard.
For the S0 line :
By the help of a cable having 8-pin RJ45 plugs at both ends, the S0 line
coming through NT1 must be attached to the corresponding RJ45 socket at the
bottom part of the IA12 motherboard or EXP-IA12 card.