Specifications

Installation and Operation Manual Appendix D Supervision Terminal Commands
FCD-E1LC Ver. 1.0 Commands D-17
Parameter Function Values Configuration Guidelines
Note: The accuracy and stability
of the external source clock must
be compatible with system
requirements, otherwise severe
disruptions in network operation
may occur.
CTS
Selects the state of
the CTS line in the
data channel
interface.
When configuring
channel 2 for an
FCD-E1LC with
Ethernet interface,
this parameter is not
applicable
ON – CTS line continuously
on.
=RTS – CTS line tracks the
RTS line.
Default: ON
Select in accordance with the
desired operation mode of the
channel.
In general, you should use =RTS
for operation in the polling mode.
In this case, when the RTS line is
OFF, the local FCD-E1LC channel
continuously sends MARK in its
main link timeslots.
Note: When the CTS line is not
active (CTS=OFF), the user data
interface generates an “all-ones”
signal, transmitted via the main
link to the far end.
CLOCK POLARITY
Selects the polarity
of the clock signal,
relative to the data.
When configuring
channel 2 for an
FCD-E1LC with
Ethernet interface,
this parameter is
fixed at NORMAL
NORMAL – Rising edge of the
clock waveform appears in
the middle of the bit interval.
INVERT – The falling edge of
the clock waveform appears
in the middle of the bit
interval.
Default: NORMAL
Select INVERT only when
specifically instructed to do so.