ADTRAN 3060 User Manual

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Section 61182007L1-5A

Issue 1, June 2001

Total Access® 3010 LTU

High-bit-rateDigital Subscriber Line

Transceiver Unit for the Central Office

Installation and Maintenance

CONTENTS

 

 

1.

GENERAL ............................................................................

1

2.

INSTALLATION ..................................................................

2

3.

OPERATION ........................................................................

3

4.

HDSL SYSTEM TESTING ..................................................

4

5.

SCU CONTROL PORT OPERATION (HDSL) .................

5

6.

HDSL DEPLOYMENT GUIDELINES .............................

17

7.

MAINTENANCE ...............................................................

17

8.

PRODUCT SPECIFICATIONS .........................................

17

9.

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

17

Appendix A.

HDSL H-LSSCircuit Configuration and Turnup

 

 

 

for G.703 Fed Systems ....................................

A-1

Appendix B.

HDSL H-LSSCircuit Configuration and Turnup

 

 

 

for DS3-FedSystems ......................................

B-1

FIGURES

 

 

 

Figure 1. ADTRAN Total Access 3010 LTU ...........................

1

Figure 2. LTU Edge Connector Wiring ....................................

2

Figure 3. LTU Span Powering Diagram ...................................

4

Figure 4.

HDSL Loopbacks ......................................................

5

Figure 5. RS-232(DB-9)Pin Assignments ..............................

5

Figure 6.

Logon Screen .............................................................

7

Figure 7. Total Access Screen ...................................................

7

Figure 8. Access Module Menus Screen ...................................

8

Figure 9. HDSL Main Menu Screen .........................................

9

Figure 10.

Configuration Screen .................................................

9

Figure 11.

Provisioning Screen .................................................

10

Figure 12. Network Source Screen ...........................................

10

Figure 13.

Status Screen ............................................................

11

Figure 14. REG #1 Status Screen ..............................................

11

Figure 15.

Alarms Screen ..........................................................

12

Figure 16.

Test Screen ...............................................................

13

Figure 17. Performance History Screen ....................................

13

Figure 18. Protection Configuration Screen – Main ................

14

Figure 19. Protection Configuration Screen – Auxiliary .........

14

Figure 20. Set Circuit ID Screen ...............................................

16

Figure 21. Alarm Option Screen ...............................................

17

TABLES

 

 

 

Table 1. Faceplate LED Indicators ..........................................

3

Table 2.

Screen Abbreviations .................................................

6

Table 3. LP1 and LP2 Guidellines .........................................

12

Table 4. Protection Configuration Option Settings ...............

15

Table 5. Total Access 3010 LTU Specifications ...................

18

Table B-1.

Faceplate LED Indicator .......................................

B-2

1. GENERAL

The ADTRAN Total Access 3010 HDSL Transceiver Unit for the Central Office (LTU), part number 1182007L1, is the Central Office (CO) unit used to deploy an HDSL E1 circuit using 4-wiremetallic facilities. SeeFigure 1.

LTU

1182007L1

PWR G703TSTLP1LP2

ALM

TX

E

Q

RX

TX

M

O

N

RX

ACT

A

P

GRN = NORM S

YEL = MAN

Figure 1. ADTRAN Total Access 3010 LTU

The E1 input signal is supplied from the network via individual G.703 lines or an E3 multiplexer. The HDSL signals are provided to the local loop. The Total Access 3010 LTU works in conjunction with the ADTRAN NTU and REG to provide an E1 service up to 9.4 km on the local loop.

The LTU works with multiple list versions of the HDSL unit Remote end (NTU) and HDSL Range Extender (REG) as listed below:

1245043Lx Low Voltage T400 REG

1245031Lx, Low Voltage T200 NTU

1245033Lx, Nx64 NTU

1245044L3, 4th Gen - T400 NTU

1245035Lx, 5th Gen - T200 NTU

The Total Access 3010 LTU can be deployed in circuits consisting of one LTU and one NTU or in a protection configuration requiring two LTUs and two NTUs. When deployment requires the HDSL Range Extender (REG), this LTU can be deployed with one or two REGs and one NTU.

61182007L1-5A

Trademarks: Any brand names and product names included in this document are

1

Section 61182007L1-5,Issue 1

respective holders.

 

trademarks, registered trademarks, or trade names of their

 

The HDSL local loop operates as two independent subsystems each operating over a single twisted pair. The LTU communicates over these two twisted pairs to the HDSL Transceiver Unit - Remote end (NTU). Each subsystem carries half of the total bandwidth along with a small amount of overhead used for maintenance and performance monitoring.

System power and alarm bus connections are made through the backplane of the Total Access 3010 shelf. E1 and HDSL signals are connected through the 50pin shelf connectors related to each individual slot.

The LTU contains onboard fuses. If a fuse opens, it supplies a -48Vdc voltage to the fuse alarm bus and all front panel indicators will be Off. These fuses are not field replaceable.

The Total Access 3010 LTU uses a DC-to-DCconverter to derive its internal logic and span powering voltages from the-48Vdc office supply. The Total Access 3010 LTU can span power REGs and NTUs as listed above. When used with REGs and NTUs, the LTU can span power one REG and an

NTU at less than -120Vdc. Span powering voltages meet all requirements of IEC 950.

REVISION HISTORY

This is the first issue of this practice. Future changes to this document will be summarized in this paragraph.

2. INSTALLATION

C A U T I O N !

SUBJECT TO ELECTROSTATIC DAMAGE

OR DECREASE IN RELIABILITY.

HANDLING PRECAUTIONS REQUIRED.

After unpacking the unit, inspect it for damage. If damage is discovered, file a claim with the carrier, then contact ADTRAN. See Warranty and Customer Service.

The Total Access 3010 LTU occupies one line card slot in a Total Access 3010 shelf. Power and alarm signals are provided to the card through the backplane of the shelf. E1 and HDSL loop signals are connected to the mass termination shelf connectors corresponding to the slot the unit occupies. See Figure 2 for LTU edge connector wiring.

P2, Row A

 

P2, Row B

P2, Row C

 

1

 

1

Chassis ground

1

- 48 Volt DC A

2

- 48 Volt return

2

Chassis ground

2

- 48 Volt DC A

3

 

3

 

3

 

4

 

4

 

4

HDSL Loop 1 Ring (facility)

5

 

5

 

5

HDSL Loop 1 Tip (facility)

6

 

6

HDSL Loop 2 Ring (facility)

6

HDSL Loop 2 Tip (facility)

7

 

7

 

7

 

8

 

8

 

8

 

9

 

9

 

9

 

10

 

10

Fuse alarm

10

 

11

 

11

 

11

 

12

 

12

 

12

 

13

 

13

 

13

 

14

 

14

 

14

 

15

 

15

 

15

 

16

 

16

 

16

 

17

 

17

 

17

 

18

 

18

 

18

 

19

 

19

 

19

 

20

 

20

 

20

 

21

 

21

 

21

 

22

 

22

 

22

 

23

 

23

 

23

 

24

 

24

 

24

 

25

 

25

Receive G.703 Ring backup connection

25

Receive G.703 Tip backup connection

26

 

26

Transmit G.703 Ring backup connection

26

Transmit G.703 Tip backup connection

27

 

27

 

27

 

28

 

28

 

28

 

29

 

29

Receive G.703 Ring normal connection

29

Receive G.703 Tip normal connection

30

 

30

Transmit G.703 Ring normal connection

30

Transmit G.703 Tip normal connection

31

 

31

 

31

- 48 Volt DC B

32

 

32

- 48 Volt return

32

- 48 Volt DC B

Figure 2. LTU Edge Connector Wiring

2

Section 61182007L1-5,Issue 1

61182007L1-5A

3. OPERATION

Powering Options

The unit features automatic sensing based on the current load detected on the HDSL circuit. Span powering at less than -120Vdc allows for span powering of circuits without REGs or with one REG.

LTU Alarm Outputs

Pin B10 of the LTU edge connector interface provides a fuse alarm signal that connects -48Vdc to this pin in the presence of a blown fuse. This indicates the card has malfunctioned and should be replaced.

Front Panel Operation Using the Total Access 3010 SCU (P/N 1181017L1)

The front panel interface consists of a 4-characteralphanumeric LED display and a3-positionswitch that controls the display.

The switch positions are:

Center OFF

Up MODE

Down SELECT

The switch is spring-loadedto the center (OFF) position. The display is used to report the loop margins (dB), and other operational conditions.

Faceplate Indicators

The Total Access 3010 LTU has seven faceplate LEDs, illustrated in Table 1, which indicate operational status.

The Total Access 3010 LTU plugs directly into the Total Access 3010 shelf. No installation wiring is required.

 

 

Table 1. Faceplate LED Indicators

 

 

 

LED

Indication

Description

 

 

 

PWR

Off

No power to card

 

Green

Power present, In-Service

 

Yellow

Power present, Out-of-Service,Maintenance or unassigned

 

Flashing Green

In-Service,Card being accessed by SCU FCD

 

Flashing Yellow

Out-of-Service,Card being accessed by SCU FCD

 

 

 

G703

Off

Network-sideE1 signal is absent or is of a format that does not match the provisioning of

 

 

the HDSL circuit

 

Flashing Green

Frame bit error or CRC error detected on received E1 signal

 

 

 

TST

Off

Unit is not in loopback or armed state

 

Yellow

Local (LTU) loopback is active

 

 

 

LP1

Off

No synchronization between the LTU and NTU on Loop 1

 

Red

Poor signal quality on Loop 1 (10-7BER)

 

Yellow

Marginal signal quality on Loop 1 (2 dB margin above10-7BER)

 

Green

Good signal quality on Loop 1 (> 2 dB margin above 10-7BER)

 

Flashing

An error detected on either end of Loop 1 will cause this LED to blink briefly

 

 

 

LP2

Off

No synchronization between the LTU and NTU on Loop 2

 

Red

Poor signal quality on Loop 2 (10-7BER)

 

Yellow

Marginal signal quality on Loop 2 (2 dB margin above10-7BER)

 

Green

Good signal quality on Loop 2 (> 2 dB margin above 10-7BER)

 

Flashing

An error detected on either end of Loop 2 will cause this LED to blink briefly

 

 

 

ALM

Off

No alarm conditions detected

 

Red

Alarm condition detected either locally (LTU), or locally and remotely (LTU and NTU)

 

 

 

ACT

Green

Normal operation

 

Yellow

Manual operation

 

 

 

61182007L1-5A

Section 61182007L1-5,Issue 1

3

Status Mode

After selecting the LTU from the SCU, the display enters Status mode. It alternately displays loop margin for each HDSL loop, any active alarm condition, and general status conditions.

The HDSL loop margin is displayed for each loop that is active with the messages “1=xx” and “2=xx” where xx is the HDSL loop margin for that loop. The loop margin is held on the display for 2 seconds. The loop margin will not be displayed if that loop is in start-upor LOS condition.

E1 Core Frame Mapping

The function of E1 core frame mapping is to assign 2048 kbps framed E1 data to a 2304 kbps core frame filled with 2048 kbps data. This converts a 32-byteE1 frame into a36-bytecore frame (a ratio of 1:1.125). The extra four bytes are filled with TSO, TS16, or AIS data. Once the36-bytecore frame data block reaches the HDSL loops, the data is split between the two HDSL loop pairs.

4. HDSL SYSTEM TESTING

The ADTRAN HDSL system provides extensive ability to monitor the status and performance of the G.703 signals and HDSL loop signals. Detailed performance monitoring is provided by the V.24 Control Port on the ADTRAN System Controller Unit (SCU). These features are valuable in troubleshooting and isolating any system level problems that may occur at installation or during operation of the HDSL system.

LTU G.703 Bantam Jack

The LTU provides two dual Bantam jacks on the front panel. These jacks provide a metallic splitting and test access of the G.703 interface for connecting test equipment to transmit and receive signals with the LTU. See Figure 3.

HDSL Loopbacks

The E1 LTU offers five diagnostic loopbacks for use in verifying proper data path operation. These loopbacks are activated via the V.24 craft interface.

These loopbacks disrupt normal data transmission. Make sure that you receive prior authorization to place an HDSL circuit out of service prior to activating any loopback. These loopbacks remain active until cleared or by expiration of the loopback timeout period. See Figure 4.

T1

 

 

 

G.703

 

 

 

R1

 

 

 

G.703

 

LTU

 

MON

 

 

RX

 

 

 

EQ

 

HDSL

HDSL

 

LOOP 1

RX

 

LOOP 1

 

 

LTU

LOOP DC

 

 

DATA

 

 

POWER SOURCE

 

 

PUMP

 

 

 

 

EQ

 

HDSL

HDSL

TX

 

LOOP 2

 

 

 

LOOP 2

G.703

 

 

 

MON

 

 

 

TX

 

 

 

T

 

 

 

G.703

 

 

 

R

 

 

 

Figure 3. LTU Span Powering Diagram

NTU Local Loopback

The NTU HDSL transceivers are looped back at a point immediately before the HDSL termination. This loopback enables a complete checkout of the NTU data path. The NTU Local Loopback is activated via the V.24 craft interface.

NTU Remote Loopback

The NTU HDSL transceivers are looped back at a point immediately before the G.703 termination. This loopback enables a complete checkout of the NTU data path, the HDSL link, and the LTU data path. The NTU Remote Loopback is activated via the V.24 craft interface.

LTU Local Loopback

The LTU HDSL transceivers are looped back at a point immediately before the HDSL termination. This loopback enables a complete checkout of the LTU data path. The LTU Local Loopback is activated via the V.24 craft interface.

LTU Remote Loopback

The LTU HDSL transceivers are looped back at a point immediately before the G.703 termination. This loopback enables a complete checkout of the NTU data path, the HDSL link, and the LTU data path. The LTU Remote Loopback is activated via the V.24 craft interface.

4

Section 61182007L1-5,Issue 1

61182007L1-5A

LTU Network-SideLoopback

 

 

 

 

 

AIS

 

G.703

LOCAL

 

G.703

 

LOOP

 

 

 

 

X

 

 

LTU

NTU

 

 

 

 

NTU Network-SideLoopback

 

 

 

 

 

AIS

 

G.703

LOCAL

 

G.703

 

LOOP

 

 

 

 

X

 

 

LTU

NTU

 

 

 

 

NTU Customer-SideLoopback

 

 

X

LOCAL

 

 

 

AIS

 

G.703

 

LOOP

 

 

 

 

 

 

 

LTU

NTU

 

 

LTU Customer-SideLoopback

 

 

X

LOCAL

 

 

 

AIS

 

G.703

 

LOOP

 

 

 

 

 

 

 

LTU

NTU

 

 

LTU and NTU Bilateral Loopback

 

G.703

LOCAL

 

G.703

 

LOOP

 

 

 

 

 

 

 

LTU

NTU

 

 

REG Network-SideLoopback

 

 

 

 

 

 

AIS

 

G.703

 

 

G.703

 

LTU

REG

 

X

 

 

NTU

 

Dual REG Network-SideLoopback

 

 

 

 

 

 

X

AIS

 

 

 

 

G.703

 

 

 

 

 

 

 

X

G.703

LTU

REG

REG

NTU

 

X = Signal Inactive

 

 

Figure 4. HDSL Loopbacks

REG Loopback

The REG HDSL transceivers are looped back toward the LTU. This loopback enables a complete checkout of the LTU data path, the HDSL link between the LTU and the REG, and the REG data path. The REG loopback is activated via the V.24 craft interface.

Front Panel

Display Message/Condition:

LLOS LTU E1 Loss of Sync

NLOS NTU E1 Loss of Sync LERR LTU E1 error

NERR NTU E1 error

LBPV LTU E1 Bipolar violation (BPV) NBPV LTU E1 Bipolar violation (BPV)

LOS1 No synchronization of LTU and NTU on loop 1

LOS2 No synchronization of LTU and NTU on loop 2

HER1 HDSL loop1 error HER2 HDSL loop2 error 1=XX* Loop 1 in Sync 2=XX* Loop 2 in Sync

* XX is the Signal Quality Level of the loop and ranges from 0-20,where 0 is an indicator of poor signal quality and 20 represents good signal quality.

Display Off Mode

The display enters Display Off Mode from Status Mode after 5 minutes with no activity on the display switch. While in this mode, the display is completely off.

The display will return to Status Mode under the following conditions:

When either MODE or SELECT is activated. Display starts again when the switch is released

When a message other than loop margin is to be displayed

5.SCU CONTROL PORT OPERATION (HDSL)

The Total Access 3010 SCU provides a faceplatemounted DB-9connector that supplies anRS-232interface for connection to a controlling terminal. The pinout of theDB-9is illustrated inFigure 5. The terminal interface operates at data rates from 1.2 kbps to 19.2 kbps. The asynchronous data format is fixed at 8 data bits, no parity, and 1 stop bit. The supported terminal type is VT100 or compatible.

1

 

6

TXD (Transmit Data)

2

7

RXD (Receive Data)

3

8

4

9

5 SGN (Signal Ground)

Figure 5. RS-232(DB-9)Pin Assignments

61182007L1-5A

Section 61182007L1-5,Issue 1

5

Many portable personal computers use power-savingprograms that are known to interfere with applications running on the personal computer. If using a portable personal computer with terminal emulation capability, communication between the computer and the HDSL unit may be periodically disrupted ifpower-savingprograms are being used on the personal computer. The symptoms may include misplaced characters appearing on the screen and/or the occurrence of screen timeouts. These symptoms are not disruptive to the operation of the circuit and are avoidable if thepower-savingoptions are disabled or removed.

Menus

For abbreviations used in the screen diagrams, see

Table 2.

The screens illustrated in Figure 6 through Figure 18 are for an HDSL circuit deployed with ADTRAN’s Low Voltage HDSL technology. The circuit includes an LTU, NTU, and two REG. This scenario was chosen for inclusiveness of functionality. However, other configurations are possible, such as one REGs, and the display will vary slightly from those shown in this section.

 

 

Table 2. Screen Abbreviations

 

 

 

Abbreviation

 

Definition

 

 

 

ES

 

Errored Seconds

 

 

 

SES

 

Severely Errored Seconds

 

 

 

UAS

 

Unavailable Seconds

 

 

 

FRAMING

CCS

Common Channel Signaling

 

CAS

Channel Associated Signaling

 

Unframed

Unframed E1 Operation

 

 

 

CODE

HDB3

High Density Bipolar Order 3

 

AMI

Alternate Mark Inversion

 

 

 

CRC4

 

Cyclic Redundancy Check 4 error detection

 

 

 

CFM

 

Core Frame Mapping (Method 0, Method 1)

 

 

 

BPV

 

Bipolar Violation

 

 

 

S/N

 

Serial Number

 

 

 

15M

 

Fifteen-Minuteperiod

 

 

 

24H

 

Twenty-four-Hourperiod

 

 

 

Alarms

 

Lists current alarm condition status

 

 

 

0

 

Poor signal quality: Noise margin is -0dB

 

 

(3 10-7BER)

 

 

 

1-8

 

Margin measurement above 10-7BER in dB

 

 

 

9

 

Excellent signal quality: Margin is 9 dB above 10-7 BER

 

 

 

6

Section 61182007L1-5,Issue 1

61182007L1-5A

Accessing the HDSL circuit information via the Total

After successful logon, the Total Access System

Access SCU requires Logon and a Password using the

Screen will appear as illustrated in Figure 7.

SCU Control Port. See Figure 6, Logon Screen.

 

Shelf: 77

Total Access System

04/07/01 15:44

Unacknowledged Alarms:

MAJOR MINOR

INFO

Total Access System

Account Name:

‘?’ - System Help Screen

Figure 6. Logon Screen

Shelf: 77

Total Access System

04/07/01 15:45

Unacknowledged Alarms:

 

MAJOR MINOR

INFO

 

Total Access

 

 

 

1.

System

Controller

 

2.

Common

A - [DS3MX]

 

3.

Common

B - [DS3MX]

 

4.

Access

Modules

 

 

5.

System

Alarms

 

 

6.

Logoff

 

 

 

Selection:

 

 

 

‘?’ - System

Help Screen

 

 

 

Figure 7. Total Access Screen

61182007L1-5A

Section 61182007L1-5,Issue 1

7

From the Total Access System Screen, select Access Modules by typing the number corresponding to the option followed by <Enter>. This will display the Access Module Menu Screen, illustrated in

Figure 8, which will display the Access Modules occupying the Total Access 3010 shelf. Select the corresponding channel slot number for an LTU.

Shelf: 77

 

Total Access System

04/07/01 15:46

Unacknowledged Alarms:

MAJOR MINOR

 

INFO

 

 

Access Module Menus

 

1

- LTU.........

[Major]

15

- ............

[None]

2

- ............

[None]

16

- ............

[None]

3

- ............

[None]

17

- ............

[None]

4

- ............

[None]

18

- ............

[None]

5

- ............

[None]

19

- ............

[None]

6

- ............

[None]

20

- ............

[None]

7

- ............

[None]

21

- ............

[None]

8

- ............

[None]

22

- ............

[None]

9

- ............

[None]

 

 

 

10

- ............

[None]

 

 

 

11

- ............

[None]

 

 

 

12

- ............

[None]

 

 

 

13

- ............

[None]

 

 

 

14

- ............

[None]

 

 

 

Enter Channel Slot Number :

Inverse = Busy Modules

Figure 8. Access Module Menus Screen

8

Section 61182007L1-5,Issue 1

61182007L1-5A

This will display the ADTRAN HDSL Main Menu as illustrated in Figure 9.

From the ADTRAN HDSL Main Menu, the following screens can be accessed.

1.Configuration

2.Provisioning

3.Status

4.Alarms

5.Test

6.Performance Monitoring

7.Protection Configuration

8.Circuit ID

9.Alarm Options

The Configuration Screen, illustrated in Figure 10, provides serial numbers and the manufacturing date for each component in the HDSL circuit.

Shelf:

1

Slot:

5

Total Access System

04/07/01 09:05

Unacknowledged Alarms:

MAJOR MINOR

 

 

Circuit ID:

 

 

 

 

 

 

 

HDSL Line Termination Unit

 

 

 

 

1.

Configuration

 

 

 

 

 

2.

Provisioning

 

 

 

 

 

3.

Status

 

 

 

 

 

4.

Alarms

 

 

 

 

 

5.

Test

 

 

 

 

 

6.

Performance Monitoring

 

 

 

 

7.

Protection Configuration

 

 

 

 

8.

Circuit ID

 

 

 

 

 

9.

Alarm Options

 

 

 

 

 

 

Selection:

 

 

 

 

 

‘?’ - System Help Screen

 

 

 

 

 

 

 

 

 

Figure 9. HDSL Main Menu Screen

 

 

 

 

 

 

 

Shelf:

1

Slot:

5

Total Access System

04/07/01 09:30

Unacknowledged Alarms:

MAJOR MINOR

 

 

Circuit ID:

 

 

 

 

 

 

 

 

 

Configuration

 

Unit Name

 

LTU

 

Unit Name

NTU

Part Number

1182007L1

Serial Number

0100001481

Serial Number

HW098765432109

Product Revision

01

Product Revision

HW

 

Manufacture Date

10/00

Software Revision A

 

 

 

Manufacture Date

01/95

 

 

 

Unit Name

 

REG1

 

Unit Name

REG2

Serial Number

0100748669

Serial Number

0100477236

Product Revision

01

 

Product Revision

01

Manufacture Date

10/00

 

Manufacture Date

10/00

‘?’ - System Help Screen

Figure 10. Configuration Screen

61182007L1-5A

Section 61182007L1-5,Issue 1

9

The Provisioning Screen, as illustrated in Figure 11, displays current provisioning settings and allows for changing the system configuration. Provisioning changes are only allowed at the CO end of the circuit. The unit retains the last provisioning changes to determine its operating mode.

The Network Source Screen, illustrated in Figure 12, allows the user to provision the unit to receive its network signal from either MUX or a G.703 source.

Shelf:

1

Slot:

5

Total Access System

04/07/01 09:06

Unacknowledged Alarms:

MAJOR MINOR

 

Circuit ID:

 

 

 

 

 

 

 

Provisioning

 

 

 

 

1.

Framing

CAS

 

 

 

2.

CRC4

Enabled

 

 

 

3.

Coding

HDB3

 

 

 

4.

G.703 Clock

Internal

 

 

 

5.

Loopback Timeout

None

 

 

 

6.

Service State

In Service

 

 

 

7.

Network Source

G.703

 

 

 

8.

G.703 External Alarms

Disabled

 

 

 

9.

Core Frame Mapping

Method 1

 

 

 

 

Selection:

 

 

 

 

 

‘?’ - System Help Screen

 

 

 

 

 

 

 

 

 

Figure 11. Provisioning Screen

 

 

 

 

 

 

Shelf:

1

Slot:

5

Total Access System

04/07/01 09:27

Unacknowledged Alarms:

MAJOR MINOR

 

Circuit ID:

 

 

 

 

Network Source

1.G.703

2.MUX A

3.MUX B

Selection:

‘?’ - System Help Screen

Figure 12. Network Source Screen

10

Section 61182007L1-5,Issue 1

61182007L1-5A