61182210L1-5A Issue 1, August 2003 3
Shipping Contents
The contents include the following items:
• SHDSL T1/E1 LTU
• SHDSL T1/E1 LTU Installation and Maintenance
Practice
CAUTION
Electronic modules can be damaged by ESD.
When handling modules, wear an antistatic
discharge wrist strap to prevent damage to
electronic components. Place modules in
antistatic packing material when transporting
or storing. When working on modules, always
place them on an approved antistatic mat that is
electrically grounded.
Instructions for Installing the Module
The SHDSL T1/E1 LTU inserts into any access module
slot (1 through 28) of a Total Access 3000 chassis. To
install the SHDSL T1/E1 LTU, perform the following
steps:
1. If present, remove the Access Module Blank (P/N
1181953L1) from the appropriate access module
slot of the Total Access 3000 chassis.
2. Hold the unit by the front panel while supporting
the bottom side with the ejector latch at the bottom,
and the latch opened to engage the chassis edge
when it is plugged in.
3. Align the module edges to fit in the lower and
upper guide grooves for the designated slot.
4. Slide the module into the access module slot while
pressing equally on the top and bottom of the front
panel until the module is firmly positioned against
the backplane of the chassis.
5. Lock the module in place by pushing in on the
locking lever located on the lower left-hand side of
the module.
The SHDSL T1/E1 LTU initializes and goes opera-
tional upon insertion into an active Total Access 3000
chassis. Initialization is indicated by the front panel
LEDs.
LED Indicators
The front panel of the SHDSL T1/E1 LTU has five LED
status indicators. Table 2 lists the LED descriptions.
Table 2. Front Panel LEDs
LED Indication Description
PWR Off
Green
Yellow
The module is powered off
The module is In Service
The module is Out of Service or in the process of a firmware upgrade
SHDSL Off
Green
Yellow
Red
SHDSL loop is Out of Service, Unassigned
SHDSL loop is trained with good signal quality
SHDSL loop is trained with poor signal quality
SHDSL loop is not trained
T1/E1 Off
Green
Port is active with alarms
Port is active with no alarms
TEST Off
Green
Yellow
Red
Module is not in loopback or BERT
Local loopback is active or BERT is running with no errors
BERT is running with bit errors
BERT is running with no pattern sync
ALM Off
Yellow
Red
No alarm condition detected
Alarm condition detected remotely
Alarm condition detected locally
