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Page 161291021L5-5A Section 61291021L5-5A, Issue 1
TRDDS-R
Total Reach
®
All Rate DDS Termination Unit
For Outside Plant and Customer Premise
Installation and Maintenance
Section 61291021L5-5A
Issue 1, April 1999
CLEI Code # D4OIKTU8 _ _
1. GENERAL
This practice provides installation and maintenance
procedures for the ADTRAN TRDDS-R Total Reach
®
All
Rate DDS Termination Unit. Figure 1 is an illustration of the
ADTRAN TRDDS-R Unit.
The ADTRAN TRDDS-R is a span-powered termination
unit designed to deliver data rates up to 64 kbps and provide
testing functionality. Used in combination with a Total
Reach dataport unit, the TRDDS-R converts the two-wire
Total Reach signal to the traditional four-wire DDS signal for
presentation to the customer.
NOTE
The TRDDS-R must be used with an appropriate
Total Reach dataport unit.
The
TRDDS-R is an auto-rate adaptive digital network
interface typically located at the customer premises point-of-
demarcation. The TRDDS-R will deliver a standard four-
wire DDS signal up to 18 kft beyond the TRDDS-R. Both
customer and network interfaces are equipped with outside
plant lightning protection. The customer interface is capable
of receiving signals attenuated to -45dB at the Nyquist
frequency of four-wire AMI DDS. In addition to
terminating the two-wire extended range signal, the TRDDS-
R functions as a regenerative loopback device supporting
Telco-generated testing. The TRDDS-R unit is available in
T200 mechanics, and may be optioned for 0 or –10 dB output
toward the customer. Figure 2 illustrates the Total Reach
DDS Circuit Diagram.
CONTENTS
1. GENERAL........................................................................... 1
2. OPTIONS ............................................................................ 2
3. INSTALLATION ................................................................ 2
4. TESTING............................................................................. 4
5. DEPLOYMENT GUIDELINES ......................................... 6
6. WARRANTY AND CUSTOMER SERVICE ................... 7
FIGURES
Figure 1. ADTRAN TRDDS-R ............................................. 1
Figure 2. Total Reach DDS Circuit Diagram ........................ 2
Figure 3. TRDDS-R Option Switch....................................... 2
Figure 4. Circuit Card Pin Assignments ................................ 3
Figure 5. Signal Loss Indication ............................................ 4
Figure 6. Total Reach Dataport Bidirectional Loopback
Pass-Thru Mode...................................................... 6
Figure 7. Total Reach Dataport Bidirectional Loopback
Normal Mode .......................................................... 6
TABLES
Table 1. Wiring Connections ................................................ 3
Table 2. UL/CUL Telecommunications Codes.................... 3
Table 3. Faceplate Indicators................................................ 4
Table 4. TRDDS-R and Total Reach Dataport Loopback
Interoperability Matrix ........................................... 4
Table 5. Latching Loopback Sequences ............................... 5
Table 6. Alternating Loopback Sequences........................... 5
Table 7. Total Reach Dataport Loopbacks ........................... 6
Table 8. Cable Type and Temperature Loss Data
@ 13.3 kHz ............................................................. 7
Table 9. TRDDS Insertion Loss Measurements .................. 7
Figure 1. ADTRAN TRDDS-R
Custom
Telecom
E190349
SW 1
Trademarks: Any brand names and product names included in this document are trademarks,
registered trademarks, or trade names of their respective holders.