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61182118L1-5B

Issue 2, July 2004

    3

2. Pull the ejector latch, located on the lower left-

hand side of the 2W/4W SHDSL LTU front panel, 
from its closed position.

3. Hold the 2W/4W SHDSL LTU by the front panel 

while supporting the bottom edge of the module 
with the ejector latch opened to engage the chassis 
edge.

4. Align the module edges to fit in the lower and 

upper guide grooves for the access module slot.

5. Slide the module into the access module slot. 

Simultaneous thumb pressure at the top (above the 
PWR LED) and at the bottom (below the 
electrostatic caution symbol) of the module will 
ensure that the module is firmly seated against the 
backplane of the chassis. 

6. Secure the 2W/4W SHDSL LTU in place by 

pushing in on the ejector latch.

When the 2W/4W SHDSL LTU first powers up it runs 
the power up self-tests. Once the power up self-test is 
complete, the status LEDs will reflect the true state of 
the hardware.

Front Panel LEDs

The 2W/4W SHDSL LTU Access Module provides 
front panel LEDs to display status information. See 

Table 2

 for a listing of the front panel LEDs and their 

indications.

4. PROVISIONING

All SHDSL LTU menus are accessed via the SCU. The 
Total Access 3000 SCU provides a front panel DB-9 
connector that supplies an RS-232 interface for 
connection to a controlling terminal. The pinout of the 
DB-9 is illustrated in 

Figure 2

.

Figure 2.  RS-232 (DB-9) Pin Assignments

The terminal interface can operate at data rates of 9.6, 
19.2, 38.4, 57.6, and 115.2 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.

6

7

8

9

1

2

3

4

5

TXD (Transmit Data)

RXD (Receive Data)

SGN (Signal Ground)

Table 2.  Front Panel LEDs

Front Panel

LED

Indication

Description

PWR

Off

Green

Yellow

Flashing (any color)

No power, or fuse failure
Self-test passed and the module is In-Service
Self-test passed and the module is Out-of-Service
VT100 menu session in progress

SHDSL

Off

Green

Red

Module is Out-of-Service, Unassigned
Module has achieved synchronization with the NTU
Module has not achieved synchronization with NTU

G.703

Off

Green

G.703 port not configured (Out-of-Service, Unassigned), 
or an alarm condition exists
G.703 port configured and no alarms exist

TST

Off

Green

Blinking Green

Red

Module is not in loopback or BERT
Local loopback is active, or BERT running with no errors
Module is running a BERT with bit errors
Module is running a BERT with no pattern sync

ALM

Off

Yellow

Red

No alarm condition detected
Remote alarm condition detected
Alarm condition detected locally

PWR

TEST

SHDSL

ALM

SHDSL

1182118L1

G.703

Содержание Total Access SHDSL LTU

Страница 1: ...for the ADTRAN Total Access 2 Wire 4 Wire SHDSL Line Termination Unit LTU P N 1182118L1 Figure 1 illustrates the 2W 4W SHDSL LTU front panel Revision History This is the second issue of this practice...

Страница 2: ...nals are transmitted received via the 64 pin backplane amphenol connectors The G 703 signal is transmitted to the network side via Pair 8 and the G 703 signal is received from the network side via con...

Страница 3: ...nt panel DB 9 connector that supplies an RS 232 interface for connection to a controlling terminal The pinout of the DB 9 is illustrated in Figure 2 Figure 2 RS 232 DB 9 Pin Assignments The terminal i...

Страница 4: ...successful login access the Total Access Main Menu and select option 4 Access Modules Then choose the slot number of the desired 2W 4W SHDSL LTU module The 2W 4W SHDSL LTU Main Menu is shown in Figur...

Страница 5: ...ons 2 SHDSL Options 1 In Service 2 Out of Service Unassigned 3 Out of Service Maintenance 1 Internal Clock 2 G 703 RX Clock 1 Disabled 2 Enabled 1 Disabled 2 Enabled 4 Loop Attenuation Alarm Threshold...

Страница 6: ...3 BERT Tx Pattern 4 BERT Tx Pattern Polarity 1 Loopback Types 1 SHSDL Loopback Type Dual Sided 2 G 703 Loopback Type Dual Sided 0 Disabled 1 999 Timeout in Minutes 2 2047 3 2e15 1 4 QRSS 1 ALT 1 Norma...

Страница 7: ...arms Disabled Enabled Disabled NTU Auto Provisioning Disabled Enabled Disabled SHDSL Options Interface Mode 2 wire 4 wire 2 wire Payload Rate kbps Enter a new value for N from 3 to 32 where Payload Ra...

Страница 8: ...d Enabled Enabled E bit Generation Disabled Enabled Disabled PM Thresholds See below ES 15 Minute Alarm Threshold Disabled 1 to 900 Alarm Threshold Disabled SES 15 Minute Alarm Threshold Disabled 1 to...

Страница 9: ...etwork The idle pattern out the G 703 interface is programmable under the G 703 option The default is FF hex all 1s 1 G 703 Service The selected time slot will carry G 703 service Refer to the Full G...

Страница 10: ...n progress The source column identifies the originator of the BERT in progress INACTIVE This BERT is not currently in progress After selecting a BERT type from the Test Screen the BERT Screen will app...

Страница 11: ...tiated at the LTU and provides bidirectional loopback at the NTU Local Network Transparent Loopback Provides a loopback at the LTU in the network direction Data is passed transparently to the customer...

Страница 12: ...mer Nontransparent Loopback Provides a loopback at the LTU in the customer direction AIS signal is injected into the network side Remote Customer Nontransparent Loopback Initiated at the LTU and provi...

Страница 13: ...nce SHDSL per ITU G991 2 2 wire mode 192 kbps to 2 048 Mbps 4 wire mode 400 kbps to 2 064 Mbps Refer to ITU 991 2 Annex B Performance Requirements 64 kbps to 1 984 Mbps TC PAM Internal clock internal...

Страница 14: ...tomers can also receive a copy of the warranty via ADTRAN s toll free faxback server at 877 457 5007 Request Document 414 for the U S and Canada Carrier Networks Equipment Warranty Request Document 90...

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