FMUX/S-4E1-E2 Multiplexer
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Copyright © 2007 Cronyx
21
Local loop on the link
Local multiplexer,
local loop enabled,
TST indicator flashes
Remote multiplexer
..
.
..
.
AIS
AIS
AIS
AIS
AIS
AIS
Link remote loop
Local multiplexer,
remote loop request on,
TST indicator double flashes
Remote multiplexer,
local loop enabled by remote
request, TST indicator flashes
..
.
..
.
AIS
AIS
AIS
AIS
AIS
AIS