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Section 61246026L6-5, Issue 2

61246026L6-5B

Pin

Designation

Description

 1 ........ CH GND ....... Chassis ground

 5 ........ DS1-T1 ......... DS1  receive  out  tip  (to  customer

interface)

 7 ........ H1-T ............. HDSL Loop 1 tip (facility)

11 ....... CH GND ....... Chassis ground

12 ....... GND .............. Ground for protection switching

13 ....... H1-R ............. HDSL Loop 1 ring (facility)

15 ....... DS1-R1 ......... DS1  receive  out  ring  (to  customer

interface)

20 ....... VCC .............. +5VDC for protection switching

27 ....... CH GND ....... Chassis ground

32 ....... PROT-4 ......... Control line for protection switching
34 ....... PROT-3 ......... Control line for protection switching
38 ....... PROT-2 ......... Control line for protection switching
40 ....... PROT-1 ......... Control line for protection switching
41 ....... H2-T ............. HDSL Loop 2 tip (facility)

47 ....... H2-R ............. HDSL Loop 2 ring (facility)

49 ....... DS1-R ........... DS1  transmit  in  ring  (from  customer

interface)

55 ....... DS1-T ........... DS1  transmit  in  tip  (from  customer

interface)

Table D.  Card Edge Pin Assignments

Figure 2.  P1 Jumper Location

Switch

Label

Function

REM .......... Pressing this switch changes the HTU-C customer

loopback state as follows:

• If the HTU-C 

is not

 in loopback, pressing REM

activates

 the loopback.

• If  the  HTU-C 

is

  in  loopback,  pressing  REM

deactivates

 the loopback.

LOC ........... Pressing this switch changes the HTU-R customer

loopback state as follows:

• If the HTU-R 

is not

 in loopback, pressing LOC

activates

 the bilateral loopback.

• If  the  HTU-R 

is

  in  loopback,  pressing  LOC

deactivates 

the bilateral loopback.

Table C.  Front Panel Loopback Switches

3.  CONNECTIONS

All connections of the HTU-R are made through
card edge connectors.  Table D gives the card edge
pin assignments for the HTU-R circuit pack.

When the circuit pack is installed in any of the
HTU-R enclosures, all connections are made
through the enclosure backplanes.  See the
following ADTRAN Installation and Maintenance
practices for more information:

Number

Description

61242007L1-5 .......... HR12 Installation and

Maintenance

61242008L1-5 .......... HR4 Installation and

Maintenance

61242034L2-5 .......... T400 Single Mount

Installation and Maintenance
(removable RJ-48 jacks)

61245034L1-5 .......... T200 Dual-slot Installation

and Maintenance (APS
Housing)

Caution:  Ensure chassis ground is properly
connected  for  either  standalone  or
shelf-mounted applications.

4.  HDSL SYSTEM TESTING

The T200 HTU-R provides diagnostic, loopback,
and signal monitoring capabilities.

The seven front panel LEDs provide diagnostics for
HDSL loops, DS1 signals, alarms, provisioning, and
loopbacks.  See subsection 2 of this practice for
details.

The HTU-R provides local and remote loopback
capabilities via the loopback switches or through the
craft interface port (DB9) on the faceplate.

The DS1 MON jacks provide a non-intrusive access
for DS1 signal monitoring.

LBO

P1

0        - 15

Содержание T200 FNID

Страница 1: ...ches 3 Table D Card Edge Pin Assignments 4 Table E Screen Abbreviations 7 Table F HDSL Loss Values 14 Table G Loop Insertion Loss Data 14 Table H Troubleshooting Guide 15 Table I ADTRAN T200 Low Volta...

Страница 2: ...ctive range of an ADTRAN HDSL based T1 circuit can be extended using the ADTRAN HDSL Range Extenders HREs An HRE can double the deployment range of standard HDSL and extend the digital subscriber loop...

Страница 3: ...l quality on Loop 2 is in one of the following five states Off No synchronization of HTU C and HTU R on Loop 2 Red Poor signal quality on Loop 2 10 7 BER Yellow Marginal signal quality on Loop 2 2 dB...

Страница 4: ...ressing LOC activates the bilateral loopback If the HTU R is in loopback pressing LOC deactivates the bilateral loopback Table C Front Panel Loopback Switches 3 CONNECTIONS All connections of the HTU...

Страница 5: ...ay be accomplished using the control port of the HTU C Refer to the ADTRAN HTU C Installation and Maintenance practice P N 61246001LX 5 or other HTU C practices for more information Figure 3 HTU R MON...

Страница 6: ...provides a faceplate mounted DB9 connector that supplies an RS 232 interface for connection to a controlling terminal The pinout of the DB9 is illustrated in Figure 5 The terminal interface operates a...

Страница 7: ...History screen for HRE 1 illustrated in Figure 9A Type H again for the Performance History of HRE 2 Note Upon entering the terminal screens at the HTU R note the current time as it relates to the 15...

Страница 8: ...tion status A measure of signal quality for each HDSL loop is displayed in graphic form on the bottom of the screen The measure is from 0 poor signal quality to 9 excellent signal quality Guidelines f...

Страница 9: ...orer Boulevard Huntsville Alabama 35806 2807 For Information or Technical Support Support Hours Normal 7am 7pm CST Emergency 7 days x 24 hours Phone 800 726 8663 888 873 HDSL Fax 256 963 6217 Internet...

Страница 10: ...00 X 2 X X 1 X 00000 UAS 00000 X 1 X X 0 X NONE ALARMS NONE X 0 X Press Z to zero registers X to restart MIN MAX M for Main Menu H for HDSL Range Extender 1 HRE View CIRCUIT ID 01 01 99 00 10 18 LOOP...

Страница 11: ...6 30 Press view number to select view 20 15 16 15 Press H to view HRE 1 history PAGE COMMANDS B Page Back F Page Forward Press M to go to Main Menu CIRCUIT ID 01 01 99 00 10 44 24 HOUR REGISTERS PERFO...

Страница 12: ...2 LOOPBACK TO CUSTOMER AT HTU C INACTIVE 3 LOOPBACK TO NETWORK AT HTU R INACTIVE 4 LOOPBACK TO CUSTOMER AT HTU R INACTIVE 5 LOOPBACK TO NETWORK AT HRE 1 UNAVAILABLE 6 LOOPBACK TO CUSTOMER AT HRE 1 UN...

Страница 13: ...CKING XX BLOCKED 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Option not configurable from this terminal The DS1 Output level can be configured using a strap on the circuit...

Страница 14: ...S OK 000 HTU R RED LOS OK 000 DS1 YELLOW OK 000 BLUE AIS OK 000 HDSL Span History SPAN 1 LP1 HLOS OK 000 LP2 HLOS OK 000 HTU C LP1 MRGN OK 000 LP2 MRGN OK 000 HRE 1 LP1 MRGN OK 000 LP2 MRGN OK 000 Pre...

Страница 15: ...ith 26 AWG cable the maximum loop length including bridged tap lengths is 9 kFt 3 For loops with 24 AWG cable the maximum loop length including bridged tap lengths is 12 kFt 4 Any single bridged tap i...

Страница 16: ...se Table H to troubleshoot the ADTRAN HTU R 8 MAINTENANCE The ADTRAN HTU R requires no routine maintenance In case of equipment malfunction use the faceplate Bantam jack connector to help locate the s...

Страница 17: ...HDSL Loop 2 Customer Interface 4 wire DS1 T1 403 compatible ITU T I 431 compliant DS1 Signal Output Level 0 or 15 dB DS1 Input Signal Level 0 to 22 5 dB DS1 Line Coding AMI B8ZS DS1 Framing Format SF...

Страница 18: ...loopback capabilities are controlled from the central office unit HTU C NOTE If the HTU C on a circuit contains Standard loopbacks then refer to subsection 1 of this Appendix to determine its loopbac...

Страница 19: ...code sequences presented the in band codes are shown leftmost bit transmittedfirst andtheESFdatalinkcodes with rightmost bit transmitted first Disarmed State The disarmed state is the normal mode of o...

Страница 20: ...111 0100 0010 The designated HDSL element will loop up after receiving the proper activation sequence Transition from armed to disarmed state All HDSL elements can be commanded to move from the armed...

Страница 21: ...wever the data flow is monitored for the in band deactivation sequence the in band disarming sequence and the ESF data link disarming sequence Also a loop up timeout value causes automatic return to t...

Страница 22: ...ard customer at HTUC N FF04 Loopback data from network toward network at HRE1 N FF06 Loopback data from network toward network at HRE2 C 3F04 Loopback data from customer toward customer at HRE1 C 3F06...

Страница 23: ...d the unit will remain in loopback If the pattern is reinstated the injection of 10 bit errors will resume at 20 second intervals If a second HRE is present the units have been armed the HRE will loop...

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