ADTRAN Total Access SHDSL LTU Скачать руководство пользователя страница 12

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Issue 2, July 2004

61182118L1-5B

Remote Customer
Transparent
Loopback

Initiated at the LTU and provides a loopback at
the NTU in the customer direction. Data is
passed transparently to the network side.

Local Customer
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 provides a loopback at
the NTU in the customer direction. AIS signal
is injected into the network side.

Table 7. Loopback Types (Continued)

Loopback Type

Description

Illustration

LTU

TX Data

NTU

LTU

TX AIS

NTU

LTU

TX AIS

NTU

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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