Product specifications

61181113L2-5A Issue 1, November 2003 5
Instructions for Installing the Module
To install the Total Access 3000 H2TU-C, perform the
following steps:
1. If present, remove the Access Module Blank from
the appropriate access module slot of the Total
Access chassis.
2. Pull the ejector latch, located on the lower left-
hand side of the Total Access 3000 H2TU-C front
panel, from its closed position.
3. Hold the unit by the front panel while supporting
the bottom edge of the module with the ejector
latch opened to engage the chassis edge.
4. Align the unit edges to fit in the lower and upper
guide grooves for the access module slot.
5. Slide the unit into the access module slot.
Simultaneous thumb pressure at the top and at the
bottom of the unit will ensure that the module is
firmly positioned against the backplane of the
chassis.
6. Secure the Total Access 3000 H2TU-C in place by
pushing in on the ejector latch.
When the unit first powers up it runs the a series of self-
tests. Once the power up self-test is complete, the status
LEDs will reflect the true state of the hardware.
Front Panel LEDs
The Total Access 3000 H2TU-C Access Module
provides front panel LEDs to display status information.
Tab l e 3 lists the front panel LEDs and their indications.
Table 3. Front Panel LEDs
Front Panel Label Status Description
DSL Green
Red
DSL sync, no errors currently detected, and signal margin ≥2 dB
No DSL sync, errors being detected, or signal quality < 2 dB
DSX/DS1 Green
Red
DSX-1 signal is present and synchronized and no errors are being detected
No DSX-1 signal, or signal is present with errors
ALM Off
Red
Yellow
No alarm condition detected
Loss of DSX-1 signal to the unit
Loss of DS1 signal to the remote
ESF/SF Off
Yellow
Green
Unit is provisioned for DS1 unframed operation
Unit is provisioned for DS1 ESF framing mode
Unit is provisioned for DS1 SF framing mode
B8ZS/
AMI
Yellow
Green
Unit is provisioned for B8ZS line code
Unit is provisioned for AMI line code
LBK Off
Yellow
Unit is not in loopback
Unit loopback is active toward network or customer
1181113L2
H TUCH TUC
DSL
DSX
ALM
B8ZS/ALM
(YEL) (GRN)
ESF/ SF
(YEL) (GRN)
LBK
TX
RX
E
Q
M
O
N
TX
RX
SCAN