ADTRAN Total Access 1500 Total Reach DDS-DP Job Aid

CLEI: VAL2JG0A_ _
Product P/N: 1180105L1
D
ESCRIPTION
The Total Access 1500 Total Reach DDS‐DP delivers data
at rates up to 64 kbps using a single copper pair. Used in
combination with the Total Reach DDS‐R termination
unit, the Total Reach DDS‐DP can accommodate
extended loop lengths, eliminating the need for DDS
repeaters. The features supported on the TR DDS‐DP are
as follows:
Features
♦
All standard rates to 56 kbps with or without
secondary channel.
♦
64 kbps clear channel
♦
2‐wire deployment
♦
Repeaterless operation
♦
Bridged tap tolerant
♦
Span power for remote DDS‐R termination unit
♦
Utilization in all Total Access 1500 remote terminal
applications
♦
Logic level test access; nonintrusive receive
monitoring capability
♦
Loop Quality Monitor and A/B signaling options
♦
Embedded Digital System 6 capabilities for remote
provisioning, configuration, and performance
monitoring
♦
Provisioning via DB‐9 craft interface on Total Access
1500 System Controller Unit (SCU)
♦
Bidirectional loopback during local DS0 latching
loopback
♦
Protected loopback eliminates false latching loopback occurrences
♦
Supports DDS latching loopback standard T1E1.2/99‐007R1Front Panel
Pushbutton
The Total Reach DDS‐DP span powers the remote DDS‐R located at the
customer premises. The DDS‐R converts the 2‐wire signal to the traditional 4‐
wire Alternate Mark Inversion (AMI) signal for presentation to the customer.
The Total Reach DDS‐DP occupies a single channel position in the Total Access
1500 chassis. It provides the interface between a DS0 time slot of the T‐carrier
data stream, and the 2‐wire metallic loop extending to the customer premises.
The Total Reach DDS‐DP will interoperate over the carrier system with another
Total Reach DDS‐DP, OCU DP, DS0 DP, 1/0 DCS, or switch and can be located
in an end office, hub office, intermediate office, or Digital Loop Typographical
Conventions Carrier. The 2‐wire loop is connected using the Tip (pin 15) and
the Ring (pin 35) on the Total Access 1500 backplane.
I
NSTALLATION
Before installation, inspect the TR DDS‐DP. If damage has occurred during
shipping, file a claim with the carrier, and then contact ADTRAN Customer
Support. For more information, refer to "Warranty."
Remove the Access Module Blank (1175099L1) from the appropriate slot of the
Total Access 1500 chassis, if present.
The Total Reach DDS‐DP plugs directly into a Total Access 1500 shelf. No spe‐
cial wiring is required. The 2‐wire loop uses the T/R (Tip and Ring) pair, pins 15
and 35, of the Total Access 1500 backplane.
When the TR DDS‐DP first powers up it performs self‐tests. Once the power up
self‐tests are complete, the status LEDs will reflect the true state of the
hardware.
Total Access 1500
Total Reach DDS-DP
Front Panel LEDs
LED
STATUS
REM
Bantam Jacks
NEAR and FAR logic level bantam test access jacks. These test points are
intrusive into the data stream.
NOTE
These jacks are for TPI 108/109, FIREBERD 6000, or other DS0 level test set.
Remote Unit Span Power
The TR DDS‐DP span powers the remote unit by providing ‐130 VDC
measured from Tip to Ring. Voltage measured from Tip to GND should be ‐130
VDC or less depending on voltmeter impedance. Voltage from Ring to GND
should indicate approximately 0 VDC.
T
ESTING
The Total Reach DDS‐DP is equipped with logic level bantam test access jacks
that permit testing in both directions using a portable test set. A bidirectional
loopback is executed when performing an OCU loopback at the Total Reach
DDS‐DP, during which the DDS‐R enables test data to pass through the 4‐wire
interface to the customer site. A loopback may also be initiated in response to
the loopback pushbutton on the remote unit.
S
YNCHRONIZATION
The Total Reach DDS‐DP and DDS‐R typically require 30 to 90 seconds to
achieve synchronization. Once achieved, the Status LED will turn ON green. If
synchronization cannot be achieved, check the T/R pair for open‐circuit or
short‐circuit conditions or load coils.
P
ROVISIONING
Remote access to provisioning and status information is accomplished using
either ADTRAN Digital System 6 Message protocol or through the craft
interface on the Total Access 1500 SCU.
All configuration options can be remotely viewed or provisioned. The front
panel Remote (REM) LED indicator remains ON after remote provisioning is
accomplished. If the unit has been remotely provisioned, the operator can
alternate between remote configuration and manual switch settings by
pressing the momentary Alternate Provisioning (AP) switch located on the
front panel.
Document P/N: 61180105L1-22B
Condition Description
Off Power is Off
Green Normal Operating Condition
Yellow Loopback is active at DDS ‐ SP
Red Indicates one of three conditions:
♦
Loss of sealing current
♦
Loss of, or no synchronization
♦
Poor signal quality
Off Power is off
Green Remote Provisioning in effect
2
Green Flashing D‐6 control link established
jobAid
Issue Date: June 2010