Adtran TRDDS-R Manual Do Utilizador

Page 1

61291021L5-5A

Section 61291021L5-5A, Issue 1

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.

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.

1.

GENERAL ........................................................................... 1

2.

OPTIONS ............................................................................ 2

3.

INSTALLATION ................................................................ 2

4.

TESTING ............................................................................. 4

5.

DEPLOYMENT GUIDELINES ......................................... 6

6.

WARRANTY AND CUSTOMER SERVICE ................... 7

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

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

SW 1

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