6 61433105L2-5DSection 61433105L2, Issue 4
on the Total Reach DDS-R. The Total Reach DDS-R
displays provisioning information, Total Reach
system status, performance monitoring information
stored in 15 minute and 24 hour registers for both the
Series 5 Total Reach DDS-DP and Total Reach DDS-
R and an event log which time stamps system
performance anomalies and threshold violations.
Physical access to the terminal interface on the Total
Reach DDS-R is made by a serial interface connection
to a dumb terminal or dumb terminal emulation.
Provisioning of the Series 5 Total Reach DDS-DP
may be viewed but not changed from the terminal
interface on the Total Reach DDS-R. Further
information about the Total Reach DDS-R terminal
interface and performance monitoring may be found
in the Total Reach DDS-R practice part number
61291023L2-5A
5. DEPLOYMENT GUIDELINES
The Series 5 Total Reach DDS-DP and Total Reach
DDS-R use technology intended to eliminate the need
for repeaters and concerns over impairments caused by
typical noise and bridged tap. Listed below are the loop
design guidelines for Total Reach DDS (see Table 5 and
Table 6 for more information):
• All loops must be nonloaded.
• Actual Measured Loss (AML) should not exceed 50
dB at 13.3 kHz (135 Ω termination), the Nyquist
frequency of Total Reach DDS.
NOTE
The REACT 2001 GUI software Release 1.900
supports ANSI T1.107-1995.
Remote access is accomplished using a defined set of in-
band DS0 byte sequences similar to the latching
loopback sequence. Commands issued through the test
system are recognized by the individual channel unit,
which responds with the appropriate byte sequences.
These in-band commands may be used to verify options
via dialogs with REACT 2001 and TPI 108/109 test sets.
Unit CLEI, serial number, provisioning, and performance
information can be retrieved remotely using the Digital
System 6 protocol.
NOTE
Due to SLC Series 5 channel bank BCU
constraints, provisioning of the Series 5 Total
Reach DDS-DP may be viewed but not
changed via Digital System 6.
Out-of-Band Diagnostics
In addition to in-band access to Series 5 Total Reach
DDS-DP performance diagnostics and provisioning
via Digital System 6, access is also available out-of-
band (non-intrusively) via the craft interface located
4-Wire
CPE Interface
TR
OCU-R
Push once for Total Reach
DDS-DP Loopback
Local Loop
ASC 9Eh
TR
DDS
DP
Loopback
Pushbutton
Test
Set
Figure 6. Total Reach OCU-R Remote End Initiated Loopback, Local Loop
4-Wire
CPE Interface
TR
OCU-R
Push twice for TROCU-R
Loopback
Local Loop
ASC 9Eh
TR
DDS
DP
Loopback
Pushbutton
Test
Set
ASC 9Eh
Figure 7. Total Reach OCU-R Remote End Initiated Loopback, Customer Loop
