GAI-Tronics LE200-RM Rack-Mount Page/Party Line Extender - Manual (Page 28)

Pub. 42004-392G
M ODEL LE200-RM R ACK -M OUNT P AGE /P ARTY
®
L INE E XTENDER P AGE 26 of 56
e:\standard ioms - current release\42004 instr. manuals\42004-392g.doc
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Rules for Interconnecting More than Two Model LE200-RMs
When connecting more than two Model LE200-RMs together, these rules must be followed.
 A maximum of two Model LE200-RM pairs can be connected in series when the series connections
are made using Page/Party ® cable as shown below.
Figure 10. Maximum Series Connections
When the Model LE200-RMs are connected in series, a problem can arise when training the echo
cancellation. If more than one Model LE200-RM is training echo cancellation on a signal line at the
same time, then none of them will train echo cancellation properly. To prevent this, power each Line
Extender one at a time. Wait for the echo cancellation to complete on the first Line Extender before
powering the second.
 A maximum of eight pairs of Model LE200-RMs can be connected in parallel. Parallel connections
must be made using the LVDS link and the T1/E1 link as shown below.
Figure 11. Maximum Parallel Connections