Paradyne 3510 - Manual (Page 66)

COMSPHERE 3500 Series Data Service Units
4-26 March 1999 3510-A2-GN32-60
S5-6: Diagnostic Message Clamping – If this strap is
enabled, the tributary DSU will clamp received data to
MARK and received line signal detect to Off whenever
2600 or 3500 Series diagnostic test/command messages
are received. These messages are detected at a tributary
DSU by the presence of Control Mode Idle signals. The
clamping prevents diagnostic messages from reaching the
customer DTE interface. If the control DSU must be
strapped for Switched Carrier, then this strap must be
disabled at the tributary DSU. The tributary DSU will
pass diagnostic messages to its RXD lead except when the
DSU is involved in a test or has been disabled.
NOTE
This strap is only required for
Model 3510 tributary DSUs
installed in DATAPHONE II 2600
diagnostic networks. For all
other applications, Diagnostic
Message Clamping should be
disabled.
Alarm Output Installation
The carrier alarm relay installed in the COMSPHERE
3000 Series Carrier activates when there is a carrier
failure or a network failure of the associated digital
circuit. When operated with your visual or audio
equipment, an alarm can be given locally in the equipment
room.
The Model 3511 DSU triggers the alarm when any of
the following conditions occur:
•
No Signal
•
Out-of-Service
•
Streaming Terminal
The relay is capable of switching up to 30 watts
(resistive load), with a maximum voltage of 60 Vdc, and a
maximum current of 1 amp for “switching” and 2 amps
for the ‘‘steady state.”
Refer to the COMSPHERE 3000 Series Carrier,
Installation Manual for the alarm output connection
installation procedure.