ADC PG-PLUS PLL-722 User manual

PG-PLUS
TECHNICAL PRACTICE
SECTION SCP-PLL722-010-04H
Model List CLEI Code
PLL-722 1S9L1AC0A~~
3 POTS/1 ISDN
CENTRAL OFFICE LINE UNIT
LIST
PG-PLUS
PLL-722
SYNC
MARGIN
BYPASS
FAULT
POTS1
POTS2
POTS3
ISDN
PWR

SCP-PLL722-010-04H
January 6, 2003 PLL-722 List 1
Revision History of This Practice
©Copyright 2003 ADC DSL Systems, Inc. All Rights Reserved.
ADC is a registered trademark of ADC Telecommunications,Inc. PG-Plus is a registered trademark of ADC DSL Systems, Inc. No right,
license, or interest to such trademarks is granted hereunder, and you agree that you shall assert no such right, license, or interest
with respect to such trademarks. Other product names mentioned in this document are used for identification purposes only and
may be trademarks or registered trademarks of their respective companies.
Information contained in this document is company private to ADC DSL Systems, Inc., and shall not be modified, used, copied,
reproduced or disclosed in whole or in part without the written consent of ADC.
Contents herein are current as of the date of publication. ADC reserves the right to change specifications at any time without notice.
Information furnished by ADC is believed to be accurate and reliable. In no event shall ADC be liable for any damages resulting
from the loss of data, loss of use, or loss of profits and ADC further disclaims any and all liability for indirect, incidental, special,
consequential or other similar damages. This disclaimer of liability applies to all products, publications and services during and
after the warranty period.
Revision Release Date Revisions Made
01 August 28, 1997 Initial Release
02 February 26, 1999 Metric values and V2 compliancy for voltage safety added to specifications table
03 February 7, 2002 Release to rebrand document to comply with ADC standards
04 January 6, 2003 Updated Product Support Information

SCP-PLL722-010-04H Using This Practice
PLL-722 List 1 January 6, 2003
USING THIS PRACTICE
Three types of messages, identified by icons, appear in the text.
INSPECTING YOUR SHIPMENT
Upon receipt of the equipment:
•Unpack each container and visually inspect the contents for signs of damage. If the equipment has been
damaged in transit, immediately report the extent of damage to the transportation company and to ADC.
Order replacement equipment, if necessary.
•Check the packing list to ensure complete and accurate shipment of each listed item. If the shipment is short
or irregular, contact ADC as described in “Returns” on page 39. If you must store the equipment for a
prolonged period, store the equipment in its original container.
Notes indicate information about special circumstances.
Cautions indicate the possibility of equipment damage or the possibility of personal injury.
Electrostatic Discharge (ESD) susceptibility symbols indicate that a device or assembly is
susceptible to damage from electrostatic discharge.You must wear an antistatic wrist strap
connected to the appropriate ground connection prior to performing installation procedures.
You must also observe normal ESD precautions when handling electronic equipment. Do not
hold electronic plugs by their edges. Do not touch components or circuitry.

Inspecting Your Shipment SCP-PLL722-010-04H
January 6, 2003 PLL-722 List 1

SCP-PLL722-010-04H
PLL-722 List 1 January 6, 2003 i
TABLE OF CONTENTS
Overview ____________________________________________________________________________ 1
Description and Features....................................................................................................................1
Metallic Fallback................................................................................................................................1
Specifications .....................................................................................................................................2
Power Consumption and Heat Dissipation ........................................................................................3
Maximum Heat Dissipation.................................................................................................3
Thermal Loading Limitations..............................................................................................3
Maximum Power Consumption...........................................................................................4
Maximum Current Drain .....................................................................................................4
Monitoring, History and Diagnostics.................................................................................................4
Performance Parameters ......................................................................................................4
Alarms Names and Types....................................................................................................5
History .................................................................................................................................5
LED Descriptions...............................................................................................................................6
Installation and Test___________________________________________________________________ 8
Required Tools and Test Equipment..................................................................................................8
Installing the COLU...........................................................................................................................8
Initialization Sequence.......................................................................................................................8
Subscriber Drop Tests........................................................................................................................9
Administration _______________________________________________________________________ 9
Conventions Used in This Document ................................................................................................9
Logging On ......................................................................................................................................10
Logging Off......................................................................................................................................10
PAU or PMU Main Submenu ..........................................................................................................11
COLU Main Menu ...........................................................................................................................12
Navigational Methods........................................................................................................13
Menu Bar Selections..........................................................................................................13
COLU Summary Screen....................................................................................................14
Performance Submenu .....................................................................................................................15
HDSL Summary Screen ....................................................................................................15
HDSL 24-Hour History Screen .........................................................................................17
HDSL 7-day History Screen..............................................................................................18
ISDN Summary Screen .....................................................................................................19
ISDN 7-Hour History Screen ............................................................................................20
Alarms Submenu..............................................................................................................................20
HDSL History Screen........................................................................................................21

SCP-PLL722-010-04H
ii January 6, 2003 PLL-722 List 1
ISDN History Screen ........................................................................................................ 22
Configuration Submenu................................................................................................................... 23
System Options Screen ..................................................................................................... 23
System Alarm Types Screen ............................................................................................. 24
HDSL Alarm Thresholds Screen ...................................................................................... 25
HDSL Alarm Types Screen .............................................................................................. 26
ISDN1 Options Screen...................................................................................................... 27
ISDN Alarm Thresholds Screen ....................................................................................... 28
ISDN Alarm Types Screen ............................................................................................... 29
Save Configuration Screen................................................................................................ 30
Set Factory Defaults Screen.............................................................................................. 31
Test Submenu .................................................................................................................................. 32
Information Submenu...................................................................................................................... 34
Inventory Screen ............................................................................................................... 35
Help Screen ....................................................................................................................... 35
Fault Isolation _______________________________________________________________________ 36
COLU and RT Fault Indicators ....................................................................................................... 36
Subscriber Reported Faults.............................................................................................................. 37
Product Support _____________________________________________________________________ 39
Technical Support............................................................................................................................ 39
Limited Warranty ............................................................................................................................ 39
Returns............................................................................................................................................. 39
FCC Class A Compliance................................................................................................................ 41
Modifications................................................................................................................................... 41
Acronyms___________________________________________________________________________ 42

SCP-PLL722-010-04H
PLL-722 List 1 January 6, 2003 iii
LIST OF FIGURES
1. Typical System Application ............................................................................................................................1
2. COLU Front Panel LEDs ................................................................................................................................6

SCP-PLL722-010-04H
iv January 6, 2003 PLL-722 List 1

SCP-PLL722-010-04H
PLL-722 List 1 January 6, 2003 v
LIST OF TABLES
1. Power Consumption and Heat Dissipation......................................................................................................3
2. LED Descriptions ............................................................................................................................................7
3. Menu Bar Selections......................................................................................................................................13
4. System Status.................................................................................................................................................14
5. HDSL Alarms Screen ....................................................................................................................................21
6. System Options Configuration Fields ...........................................................................................................24
7. System Alarms...............................................................................................................................................25
8. HDSL Alarm Thresholds...............................................................................................................................25
9. Alarm Reports ...............................................................................................................................................26
10. HDSL Alarms................................................................................................................................................27
11. ISDN Alarms .................................................................................................................................................30

SCP-PLL722-010-04H
vi January 6, 2003 PLL-722 List 1

SCP-PLL722-010-04H Description and Features
PLL-722 List 1 January 6, 2003 1
OVERVIEW
This practice describes the ADC®PG-Plus®PLL-722 List 1, PAU-710 List 4B, a COLU that provides interfaces
for three POTS and one ISDN interface between a PG-Plus RT and subscribers.
DESCRIPTION AND FEATURES
A PG-Plus application consisting of one COTS, one COLU, and one RT (see Figure 1) provides bidirectional
transport of multiple DS0 over a single, unconditioned wire pair using HDSL technology. Using existing cable,
PG-Plus provides for higher bandwidth needs of residential and business customers by providing three POTS and
an ISDN interface on a single HDSL twisted-pair wire.
Figure 1. Typical System Application
The COLU uses ADC's HDSL technology to provide digital transmission without the need for repeaters, loop
conditioning, or pair selection. The COLU can be installed in the PCS-718 19-inch or the PCS-719 23-inch COTS.
The COLU operates in the standalone mode with no other COTS circuit cards required. Advanced features such
as performance monitoring, alarm reporting, and testing require the addition of the Alarm Unit (PAU). Line power
is provided to the RT by the COLU.
The COLU performs the interface functions between the analog POTS circuits of the CO switching system by
mapping one POTS line onto one DS0 for transmission to the RT on the HDSL pair. The COLU performs the
interface functions between the ISDN circuits of the CO switching system and the internal digital PCM bus. The
COLU maps one ISDN line onto three DS0 for transmission to the RT on the HDSL pair. To obtain maximum
reach, the HDSL line to the RT is operated at the minimum rate to support the payload.
METALLIC FALLBACK
Metallic fallback provides a direct connection from the CO to one subscriber under fault conditions. Service is
provided to the subscriber assigned to the first POTS line in the affected COLU. At the RT, the system exits
metallic fallback and attempts to synchronize if either POTS, ISDN, or the HDSL Tip to Ring pair is shorted for
at least 3 seconds, and then released for at least 3 seconds. Otherwise, the COLU checks for the presence of an RT
every 5 minutes. If an RT is present, the system begins HDSL synchronization acquisition.
Other RTs
3 POTS
1 ISDN
Alarm relays
Remote ACO
Craft port
HDSL Pair
CO
T
S
LIST
SYNC
MARGIN
BYPASS
FAULT
POTS1
POTS2
POTS3
POTS4
POTS5
POTS6
PWR
LIST
PG-PLUS
PLL-721
PG-PLUS
PLL-721
PG-PLUS
PLL-721
PG-PLUS
PLL-721
PG-PLUS
PLL-721
PG-PLUS
PLL-721
PG-PLUS
PLL-721
PG-PLUS
PLL-721
PG-PLUS
PLL-721
PG-PLUS
PLL-721
PG-PLUS
PLL-721
PG-PLUS
PLL-721
PG-PLUS
PLL-721
SYNC
MARGIN
BYPASS
FAULT
POTS1
POTS2
POTS3
POTS4
POTS5
POTS6
PWR
LIST
SYNC
MARGIN
BYPASS
FAULT
POTS1
POTS2
POTS3
POTS4
POTS5
POTS6
PWR
LIST
SYNC
MARGIN
BYPASS
FAULT
POTS1
POTS2
POTS3
POTS4
POTS5
POTS6
PWR
LIST
SYNC
MARGIN
BYPASS
FAULT
POTS1
POTS2
POTS3
POTS4
POTS5
POTS6
PWR
LIST
SYNC
MARGIN
BYPASS
FAULT
POTS1
POTS2
POTS3
POTS4
POTS5
POTS6
PWR
LIST
SYNC
MARGIN
BYPASS
FAULT
POTS1
POTS2
POTS3
POTS4
POTS5
POTS6
PWR
LIST
SYNC
MARGIN
BYPASS
FAULT
POTS1
POTS2
POTS3
POTS4
POTS5
POTS6
PWR
LIST
SYNC
MARGIN
BYPASS
FAULT
POTS1
POTS2
POTS3
POTS4
POTS5
POTS6
PWR
LIST
SYNC
MARGIN
BYPASS
FAULT
POTS1
POTS2
POTS3
POTS4
POTS5
POTS6
PWR
LIST
SYNC
MARGIN
BYPASS
FAULT
POTS1
POTS2
POTS3
POTS4
POTS5
POTS6
PWR
LIST
SYNC
MARGIN
BYPASS
FAULT
POTS1
POTS2
POTS3
POTS4
POTS5
POTS6
PWR
LIST
SYNC
MARGIN
BYPASS
FAULT
POTS1
POTS2
POTS3
POTS4
POTS5
POTS6
PWR
LIST
FAULT
PWR
LIST
PG-FLEX
PMX-744
PLUS
PG-FLEX
PMX-744
PLUS
PG-FLEX
PMU-712
PLUS
ACTIVE ACTIVE
TEST TEST
FAULT
DSX#1 DSX#1
DSX#5 DSX#5
DSX#2 DSX#2
DSX#6 DSX#6
DSX#3 DSX#3
DSX#7 DSX#7
DSX#4 DSX#4
DSX#8 DSX#8
PWR
LIST
SYNC
MARGIN
BYPASS
FAULT
POTS1
POTS2
POTS3
POTS4
POTS5
POTS6
PWR
PG-PLUS
PLL-721
LIST
SYNC
MARGIN
BYPASS
FAULT
POTS1
POTS2
POTS3
POTS4
POTS5
POTS6
PWR
PG-PLUS
PLL-721
LIST
SYNC
MARGIN
BYPASS
FAULT
POTS1
POTS2
POTS3
POTS4
POTS5
POTS6
PWR
PG-PLUS
PLL-721

Specifications SCP-PLL722-010-04H
2 January 6, 2003 PLL-722 List 1
SPECIFICATIONS
Power Supply
Voltage Safety A2 compliant per GR-1089-CORE
Input Voltage -42 Vdc to -56 Vdc
HDSL Line
Output Voltage + 140 Vdc maximum
Output Power 27 Watts maximum
HDSL Line Code 2B1Q
HDSL Line Rate 196 K symbols/sec; 392 K bps
HDSL Reach 12.5 kft (3.81 km), 26 AWG; 18.0 kft (5.48 km), 24 AWG; 25.2 kft (7.68 km), 22
AWG; 37.8 kft (11.5 km) 19 AWG
Maximum Attenuation 45.9 dB at 65 kHz
POTS
Analog Impedance 900 Ω
DC On-hook Resistance 4 M Ωminimum
DC Off-hook Resistance 1000 Ωmaximum
COTS Input Impedance 0.9 REN @ 20 Hz maximum
COTS Ring Detection 65 Vrms minimum @ 15 to 50 Hz
Provisional EOC Multipoint EOC transparent
ISDN U Interface
Input Impedance 135 Ω
Resistive Signature Tip to Ground 162 K; Ring to Ground 453 K; Tip to Ring 120 K
Performance Monitoring Interim Path Performance
Provisional Sealing Current 9 mA minimum at RT
Provisional EOC Multipoint EOC, transparent
Environment
Operating Temperature -40° F to +150° F; -40° C to +65° C
Operating Humidity 5 percent to 95 percent noncondensing
Altitude -200 ft. to 13,000 ft.; -60 m to 4,000 m
Vibration NEBS
ESD Per GR-1089-CORE
Power and Lightning Per GR-1089-CORE
Human Safety UL 1950 for Restricted Access
Emissions Radiation and Immunity Per GR-1089-CORE for class A equipment
Connector 50 gold-plated card edge fingers
Dimensions
Height 5.5 in. (14.0 cm.)
Width 1.1 in. (2.8 cm.)
Depth 10.25 in. (26.0 cm.)
Weight 2.0 lbs. (0.9 kg.)

SCP-PLL722-010-04H Power Consumption and Heat Dissipation
PLL-722 List 1 January 6, 2003 3
POWER CONSUMPTION AND HEAT DISSIPATION
The three most important power demands of an COLU on the shelf power supply are its maximum power
consumption, its maximum heat dissipation, and its maximum current drain. Table 1 lists the power consumption
and heat dissipation for the COLU, on a per slot and per shelf basis.
Maximum Heat Dissipation
The maximum heat dissipation measures the power converted into heat that is built up within the COLU. It
contributes to the total heat generated in the space around the COLU. It is used to determine the maximum number
of fully loaded COTS per bay that will not exceed the maximum allowable power dissipation density in
Watts per square foot.
In CO locations, the Maximum Heat Dissipation for open faced, natural convection-cooled mountings is limited
to 134.7 W per square foot as per Section 4.1.4 of the NEBS standard GR-63-CORE. The footprint of a standard
16-slot, 23-inch COTS is 7.042 square foot. The maximum bay dissipation is therefore limited to 948.6 W. At
80 W per COTS, this limits the number of fully loaded COTS to eleven per bay with a heat baffle above each
COTS.
Thermal Loading Limitations
The thermal loading limitations imposed when using the COLU in a CEV or other enclosures are determined by
applying the COLU power parameters to the manufacturer's requirements for each specific housing.
Table 1. Power Consumption and Heat Dissipation
Power COLU
Slot
COTS
19-inch 23-inch
Maximum Heat Dissipation
HDSL Line Power Off 2.8 W 33.6 W 44.8 W
HDSL Line Power On 5.0 W 60.0 W 80.0 W
Maximum Power Consumption
HDSL Line Power Off 2.8 W 33.6 W 44.8 W
HDSL Line Power On 8.5 W 102.0 W 136.0 W
Maximum Current Drain
HDSL Line Power Off 0.06 A 0.791 A 1.054 A
HDSL Line Power On 0.198 A 2.380 A 3.174 A
This is a worst case situation in that it assumes the entire CO is subjected to the maximum power density.
Conditions other than worst case would permit increasing the number of COTS per bay without
jeopardizing the CO thermal integrity. Due to the chimney effect, ADC recommends you install one
heat-dissipating baffle between every COTS. This action would prevent exceeding the rated operating
temperature of the COLU units.

Monitoring, History and Diagnostics SCP-PLL722-010-04H
4 January 6, 2003 PLL-722 List 1
Maximum Power Consumption
Maximum power consumption is the total power that the COLU consumes or draws from its -48 Vdc COTS power
source. This parameter is needed when the COLU is located remotely from its serving CO. It determines the
battery capacity required to maintain an 8-hour standby battery reserve for emergency situations. This limits the
maximum number of line units in a remote enclosure.
Maximum Current Drain
Maximum current drain is the maximum current drawn from the COTS power supply when it is at its minimum
voltage (-42.5 Vdc). This determines the COTS fusing requirements.
MONITORING, HISTORY AND DIAGNOSTICS
COLUs provide extensive real-time, non-disruptive monitoring of HDSL transmission performance parameters
for all units in a circuit. PG-Plus allows user-selectable threshold settings for performance monitoring
measurements. This allows alarms to be activated at the designated threshold setting. Performance of the user
interface ports is also monitored. Monitored parameters include the following:
•HDSL Noise margin, pulse attenuation, ES, UAS
•Interface ES, SES, UAS, BPV seconds
•Major Alarm Relay Form-C relay contacts (NO, NC, C). Fail-safe operation
•Loopbacks Local interface loopback, local HDSL loopback, remote loopback
•Test Jacks Bridge jack on the front panel
Performance Parameters
Based on the monitored parameters, the COLUs derive the following performance parameters:
•MAR - A measure of the ratio of signal power to noise power, in dB, at a receiver point. A value of 0 dB
means that the predicted transmission BER is equal to 10-7, a value of 6 dB means the predicted transmission
BER is equal to 10-10. The Main menu status display of the console continuously updates the margin value.
HDSL CRC-6: A 6-bit word in every HDSL frame, representing a calculation based on all the bits in that
frame. Any mismatch at the receiver, between the received CRC-6 and the one calculated, based on the
received data in the frame, indicates that one or more bits were received in error. The units use this parameter
to derive the HDSL ES performance parameter.
•LOSW - The COLU has detected an error in one or more bits in six consecutive HDSL SYNC words. Two
consecutive SYNC words must be received without error to clear this condition. A LOSW condition generally
indicates the loop is down, thus data cannot be transmitted. The COLU use this parameter to derive UAS
performance parameter.
•HDSL ES - An interval of 1 second during which at least one error is detected at the incoming HDSL port or
there is an LOSW condition.
•HDSL UAS - An interval of 1 second during which a loop is down.

SCP-PLL722-010-04H Monitoring, History and Diagnostics
PLL-722 List 1 January 6, 2003 5
Alarms Names and Types
The COLUs generate alarms for problem conditions on the HDSL transmission facility and at the application
interface. From the “System Alarm Types Screen” on page 24, you can set the alarms to the value types of Critical,
Major, Minor, Not Alarmed, and Not Reported. You can view the alarm status from the “COLU Summary Screen”
on page 14.
•MAR
•ES
•LOSW
•PFO
•PFS
•PGF
•MISMATCH
•NORLUSW
•MISPWRA
•MISPWRB
History
Current cumulative counts of the past twenty-four hours and historical data in the form of 24-hour history and a
7-day history are available to assist in identifying problem sources. You can view the HDSL history from the
“HDSL History Screen” on page 21.

LED Descriptions SCP-PLL722-010-04H
6 January 6, 2003 PLL-722 List 1
LED DESCRIPTIONS
Table 2, in which nequals the POTS line, describes the COLU front-panel LEDs depicted in Figure 2. For further
details on the LEDs activities, refer to “Initialization Sequence” on page 8 and the “COLU and RT Fault
Indicators” on page 36.
Figure 2. COLU Front Panel LEDs
LIST
PG-PLUS
PLL-722
SYNC
MARGIN
BYPASS
FAULT
POTS1
POTS2
POTS3
ISDN
PWR
Status LEDs
Retaining Latc
h

SCP-PLL722-010-04H LED Descriptions
PLL-722 List 1 January 6, 2003 7
Table 2. LED Descriptions
LED Condition Mode
PWR On COLU is powered and the dc power provided to the HDSL pair is normal.
Flashing One battery feed is missing or a battery feed fuse on the COLU is blown.
On, and FAULT Flashing DC power provided to the HDSL pair is out of normal range.
On, all others flashing at 1 Hz Running in Boot Mode due to invalid Application Program
On, all others running downward at 1 Hz Active software download of the COLU
On, all POTS and ISDN LEDS On, all
others running upward at 1 Hz
Active software download of the RT connected to the COLU
SYNC On HDSL is in synchronization between COLU and RT.
Flashing COLU and RT are attempting to SYNC.
MARGIN On COLU HDSL margin is equal to or below the threshold value.
Flashing RT HDSL Margin is equal to or below the threshold value.
BYPASS On COLU is in fallback to metallic.
and POTSnFlashing SDT is occurring on POTSn*.
and ISDN Flashing SDT is occurring on ISDN or loopback is active on ISDN.
FAULT On COLU has a fault.
Flashing Alarm condition exists on the COLU.
ISDN On Channel is active and ready for layer 2 communication.
POTSnOn Channel is off-hook.
Flashing with Ring Cadence Channel is ringing.

Required Tools and Test Equipment SCP-PLL722-010-04H
8 January 6, 2003 PLL-722 List 1
INSTALLATION AND TEST
REQUIRED TOOLS AND TEST EQUIPMENT
No tools are required to install the COLU. For testing, the following tools may be utilized:
•Telephone test set
•ISDN Basic Rate test set
•Optional, PSU-795, COTS Continuity Test Card, 150-1695-01 List 1
INSTALLING THE COLU
You can install the COLU in any slot except the three positions labeled COMMON, MUX 1, and MUX 2. Refer
to the cabling tables provided in the COTS documentation for slot and Telco cabling assignment.
1Open the retaining latch on the front of the COLU.
2Insert the COLU into the card guides in a vacant slot in the COTS that corresponds to the location of the
wiring from the CO switch.
3Engage the retaining latch to hold the card in place.
All alarms in the PG-Plus application are suppressed when initially installed and powered up. Any alarms that are
generated during this process are Suppressed. When the HDSL is synchronized and the COLU and RT margin has
cleared; outstanding Suppressed alarms are made Active and reported to the PAU or the PMU, based upon their
provisioned types.
INITIALIZATION SEQUENCE
After inserting the COLU into the appropriate slot in the COTS, the following events should occur in the order
listed below:
•All LEDs briefly blink On and then Off, with the exception of the PWR and FAULT LEDs that remain
Flashing.
•After about 5 seconds, the COLU applies power and goes into Start-Up mode. If an RT is present and no PFSs,
PFOs, or PGFs are detected, the PWR LED is On green. If the line is Offhook, the HDSL power is not applied
until it goes Onhook for at least 3 seconds. There is a 5 second delay before turning on the HDSL power.
•After applying the HDSL power, the tests for overload/underload conditions are performed. If the HDSL line
power is normal, the PWR LED is On and HDSL start-up is initiated.
•As the COLU continues with Start-Up mode, the SYNC LED Flashes, indicating the HDSL line is attempting
to acquire synchronization. When synchronization is complete, the SYNC LED is On. It takes approximately
10 to 15 seconds from the system power-up until the HDSL power is normal. If the first HDSL
synchronization attempt fails then the system is powered down and put into the Metallic Fallback state. After
a 5 minute period, HDSL power is applied again and a second attempt is made to acquire HDSL
synchronization. If the second attempt fails, the system goes into Metallic Fallback state.
•The MARGIN LED is On yellow indicating the COLU signal-to-noise ratio is equal or below the selected
signal-to-noise ratio threshold on the COLU. The MARGIN LED Flashes if the signal-to-noise ratio of the
HDSL line is equal or below the selected signal-to-noise ratio threshold on the RT.

SCP-PLL722-010-04H Subscriber Drop Tests
PLL-722 List 1 January 6, 2003 9
SUBSCRIBER DROP TESTS
You can perform this function in one of two ways:
•Initiate a test by applying a test voltage on the Tip at the COLU through an MLT set
•With the VT-100 Terminal connected to the PAU or PMU maintenance port, select the Subscriber Drop Test
feature from the Test menu. Relays on the RT provide a path for performing a SDT. The results are reported
to the PAU or the PMU and presented as TA-909 resistive signatures.
ADMINISTRATION
Performance monitoring is built into PG-Plus applications. You can access the VT-100 port of the PAU or the
PMU to review performance measurements that provide an indication of the quality of transmission to the
subscriber. You can perform system administration functions, such as alarm checking and clearing, configuration
changes, performance monitoring, and testing for the COLU through the COLU screens.
Connect a VT-100 terminal to the RS-232 interface on the front panel of either the PAU or the PMU to access the
COLU screens. If the system does not respond, verify the following values are present:
•VT-100 terminal Hardware Flow Control is set to On
•XON/XOFF is enabled
•ASYNC parameters: Data = 8, Parity = None, Start/Stop = 1.
For further information on connecting a terminal and accessing the screens refer to the PAU or the PMU Technical
Practice.
CONVENTIONS USED IN THIS DOCUMENT
Some screen shots in this document come from a prototype setup and may appear slightly different from what you
see on your Craft interface screen. The basic information and contents should be similar. This document uses the
following conventions for menus and shortcuts:
The factory defaults given in this document are standard factory defaults. You may have a customized
version of the product, in which case, refer to the PG-Plus Customized Factory Defaults for the values
appropriate to the product version you have.
Example Describes
menu name of menu item
submenu name of submenu item
prompts the place where you answer yes or no or type some other response
error the name of what’s wrong
error text an explanation of what’s wrong
nnnn a variable, such as POTS unit 1 in a 6 POTS unit

Logging On SCP-PLL722-010-04H
10 January 6, 2003 PLL-722 List 1
LOGGING ON
1Press the several times to activate the Autobaud feature. Supported baud rates are 1200, 2400,
4800, 9600, and 38400. The Logon Password screen displays.
2Type the default password and press to view the PAU or PMU Main menu bar.
LOGGING OFF
If you must leave your VT-100 terminal unattended, it is good practice to log out until you are ready to resume
work. This prevents unauthorized persons from inadvertently changing any of your operating parameters. Log out
by choosing Logout from the PAU Main menu bar or by disconnecting the cable connecting the console to the
PAU/PMU.
password#1 is the factory-default password. If you establish a different password, you must type the
new password at a subsequent log on. Passwords are not case sensitive. The password must use at least 6
and no more than 10 characters, and the new password MUST contain at least 1 alpha, 1 numeric, and 1
special character. If the system does not respond, verify that the Hardware Flow Control of the VT-100
terminal is set to On.
SPACEBAR
PG-Plus Login Screen
Enter Password: ____________
Access Key: 062790011146
ENTER