NTP-006
: Circuit Order 363-206-305
Page 2 of 6 Issue 3, June 2000
DDM-2000 F
IBER
R
EACH
W
IDEBAND
S
HELF
DO ITEMS BELOW IN ORDER LISTED. . . . .FOR DETAILS, GO TO
NOTE:
Standard DS1 transmitter sources are designed to terminate
in a nominal 100-ohm impedance. This termination is usually
provided by the receiving equipment. When not connected
to receiving equipment (that is, idle or unterminated), DS1
transmitter equipment should terminate in a 100-ohm load.
When connecting through DSX equipment, this can be
accomplished with terminating plugs available from the DSX
manufacturer. Any alternative method may be used resulting
in 100-ohms across the TIP and RING of the DS1 circuit
output while in an idle state. Failure to terminate DS1
outputs may result in violation of FCC Part 15 emission
requirements and possibly interfere with other electronic
equipment. Also, AIS should be turned off (using the
set-t1:
address
:ais=no command) on any DS1 circuit
that is not in service.
NOTE:
If the DDM-2000 FiberReach fails to respond in the indicated
manner, refer to
Trouble Clearing: IXL-001
.
Determine which DS1 ports/slots are to be put into service and
what options are to be selected.
2. Verify that no LEDs or alarms are activated. If any LEDs or
alarms are activated, refer to
Trouble Clearing: IXL-001
and
follow the appropriate trouble-clearing procedure.
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