Karel MS224 Installation & Maintenance Guide
Edition 3.2
14
MS224 has a default numbering plan for extensions from 1111 to 1310 (max.) and
lines from 01 to 28 (max.). When all the cards are installed and the system is
powered on, the system checks and recognizes all the cards automatically and
arranges the numbering plan accordingly.
MS224 EX1 consists of MS224 EX1B and CON1 cards. Similarly, MS224 EX2
includes MS224 EX2B and CON2 cards. MS224 EX1B and MS224 EX2B are the
capacity expansion boards, having extension circuitries as well as bus receiving
circuitries. MS224 EX1B card employs line circuitries as well. See Figure A-8 for
the location of these circuitries as well as Figures A-10 and A-11 for the operational
flow diagrams of MS224 EX1 and EX2 Expansion Boards, respectively.
CON1 and CON2 Connection Cards are the interface boards between the
extension telephones / external lines and the MS224 EX1B and EX2B cards,
respectively. CON1 and CON2 have the extension / line connectors as well as
some protection and filter elements. The optional 16-pair MDF cables, named CBL-
16, are also available for the connection of extension telephones and external lines
to CON1 and CON2.
The cabling of extension telephones and external lines are established through the
8-pin RJ sockets on CON1 and CON2. Each RJ socket can be used to connect 4
extension telephones or lines. So, CON1 card has 3 RJ sockets (for 12 extension
telephones) and 1 RJ socket (for 4 external lines), whereas CON2 card has 4 RJ
sockets (for 16 extension telephones). See the following figure for the cabling of
extension telephones and external lines to CON1 and CON2, via CBL-16 cable or
any similar cable procured locally.
Summary of Contents for MS224
Page 1: ...Karel MS224 T e l e p h o n e S y s t e m Installation Maintenance Guide Edition 3 2...
Page 5: ......
Page 23: ......
Page 43: ......
Page 47: ......
Page 52: ...Karel MS224 Installation Maintenance Guide Edition 3 2 49 Figure B 4 Figure B 5...
