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Basic iDSL and T1/E1 test modes 74
Model 3196RC T-DAC User Manual 5 • Troubleshooting and maintenance
Basic iDSL and T1/E1 test modes
Model 3196RC T-DACS offer a variety of test modes for individual G.HSDSL and T1/E1 ports that are of out-
standing value when initially installing or troubleshooting connections on the iDSL or T1/E1 side.
iDSL port test modes
Diagnostics loops for the 3196RC iDSL ports include:
• Local loop
• Remote loop
• Line loop
Local loop
This loop tests the operation of the selected DSL port. Data transmitted to the port is looped at the DSL port.
For example, as shown in figure 52, if DSL port 1 is mapped to T1/E1 port 1, data arriving at the T1/E1 port
and passed by the DACS to DSL port 1, is looped and sent back to T1/E1 port 1.
WAN
a
Front Panel Green On solid Indicates normal activity at each of the T1/E1/PRI links.
No action recommended.
Single
Flash
Indicates that the Model 3196RC is detecting the network, but
is unable to synchronize with it.
Double
Flash
Indicates an error on any of the T1/E1/PRI links.
Off Indicates no T1/E1 links are in use.
DSL
CONNECTION
(LEDs 1–16)
Front Panel Green On solid The ports are activated, linked, and operating normally.
Flashing One or more iDSL ports have errors.
Off No iDSL ports have been configured to establish a link.
See chapter 3,
“Configuring the T-DAC for operation” on
page 35 to configure the iDSL ports.
READY Front panel Blue On Card ready for removal from cPCI chassis.
Off Card not ready for removal from cPCI chassis.
Do not remove card from chassis.
ALARM Rear blade Yellow
On solid A minor alarm condition has been detected.
Flashing A major alarm condition has been detected.
Off The Model 3196RC is operating normally. No action
recommended.
READY Rear blade Blue On Card ready for removal from cPCI chassis.
Off Card not ready for removal from cPCI chassis.
Do not remove card from chassis.
a. This LED provides status indications for the WAN links established via the T1/E1 ports on the Rear Blade of
the 3196RC
Table 8. LED definitions (Continued)
LED Location Color Status Meaning