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Section 150-231-164
Revision 04

Page 48

TABLE 19. HLU-231 LIST 6D STATUS MENU MESSAGES (CONTINUED)

Message

Full Name

Description

LOOPBACKS:

SMJK

Smart-Jack Loopback

Loopback at HRU-412 remote towards network initiated by (2 in
5) in-band loopback code or out-of-band ESF data link code
(Figure 14).

NREM

Network Remote Loopback

Loopback at HRU-412 (remote) towards network initiated from
CO (network) by Intelligent Line Repeater (ILR) #2 code, HLU-
231 front panel MANUAL LOOPBACK push-buttons, HRU-412
front panel push-button, or maintenance terminal (Figure 14).

NLOC

Network Local Loopback

Loopback at HLU-231 List 6D (local) towards network initiated

from C0 by IOR code, HLU-231 front panel MANUAL
LOOPBACK push-buttons or maintenance terminal (Figure 14).

HDU1

Network Doubler 1 Loopback

Loopback at Doubler #1 towards network initiated by IOR code
or HLU-231 front panel MANUAL LOOPBACK push-buttons or
maintenance terminal (Figure 14).

HDU2

Network Doubler 2 Loopback

Loopback at Doubler #2 towards network initiated by IOR code
or HLU-231 front panel MANUAL LOOPBACK push-buttons or
maintenance terminal (Figure 14).

CLOC

Customer Local Loopback

Loopback at HRU-412 (local) towards CI initiated from CPE by

ILR code or HLU-231 front panel MANUAL LOOPBACK push-
button or maintenance terminal (Figure 14).

CREM

Customer Remote Loopback

Loopback at HLU-231 List 6D (remote) towards customer

initiated by IOR code or HLU front panel MANUAL LOOPBACK
push-buttons, or maintenance terminal (Figure 14).

CDU 1

Customer Doubler 1 Loopback Loopback at Doubler 1 towards CI initiated by ILR code, HLU-

231 front panel MANUAL LOOPBACK push-buttons, or
maintenance terminal (Figure 14).

CDU 2

Customer Doubler 2 Loopback Loopback at Doubler 2 towards CI initiated by ILR code, HLU-

231 front panel MANUAL LOOPBACK push-buttons, or
maintenance terminal (Figure 14).

ARM

Armed

The HiGain system has detected the IR loopback (2 in 5) arming
code.

TLOS

Transmit Loss of Signal
Loopback

HRU-412 is in a logic loopback state caused by a loss of its T1
input from the CI, if enabled at the HRU-412 via its TLOS switch
option.

Содержание PLANT Series

Страница 1: ...9 7 SPECIFICATIONS 10 8 CERTIFICATION 10 9 WARRANTY 10 B APPLICATIONS WITHOUT HIGAIN DOUBLER HDU 451 11 1 GENERAL 11 2 POWER CONSUMPTION 11 3 LOOPBACK OPERATION 11 4 TESTING 13 5 SYSTEM MAINTENANCE M...

Страница 2: ...ervice is deployed over two unconditioned non loaded copper pairs Conventional in line T1 repeaters are not required Cable pair conditioning pair separation and bridged tap removal are not required 2...

Страница 3: ...izing to the Frame Sync Word FSW of each channel the multiplexer can reconstruct the original 1 544 Mbps DS1 stream from the payloads of the two HDSL channels The CRC fields on the HDSL streams allow...

Страница 4: ...231 List 6D to automatically match the terminal line baud rate from 1200 to 9600 baud Figure 6 through Figure 13 show the menu selections available from the terminal for non Doubler applications and...

Страница 5: ...D front panel tri color STATUS LED has the following states GREEN Normal Operation FLASHING GREEN HDSL Acquisition FLASHING RED Minor Alarm For conditions see Paragraph 4 02 RED FUSEALRM YELLOW Self T...

Страница 6: ...onfigures the HiGain system to respond to the Teltrend Mod 1 addressable repeater in band loopback codes PWRF DIS Disables powering to the HRU 412 ENA Enables powering to the HRU 412 ZBTS ON Tells the...

Страница 7: ...ch can affect the data integrity UNFR Configures the HiGain system to operate in an unframed mode This mode disables the auto framing process and forces the HiGain system to function as a transparent...

Страница 8: ...akes each unit s code independent of the DS1 code being received at the distant DS1 input port Thus if the line codes being received by HiGain are different in each of the two DS1 directions the HiGai...

Страница 9: ...ow both down upstream equipment to be made aware of the loss of one HDSL loop or a loop with low margin This is the preferred setting to be able to initiate an AIS state with just one conductor open i...

Страница 10: ...to comply with the limits for Class A digital devices pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment i...

Страница 11: ...onditions other than these worst case ones would permit increasing the number of shelves per bay without jeopardizing the CO thermal integrity 2 04 The thermal loading limitations imposed when using t...

Страница 12: ...he opposite end when the DS1 user code is set to AUTO This is caused by the fact that in the AUTO DS1 code mode the HLU 231 List 6D HRU 412 set their own code independent of each other Each end sets i...

Страница 13: ...ive minutes if neither the MODE or SEL buttons are pressed The use of either button activates the 4 character display and restarts the 5 minute power control timer 4 03 If trouble is encountered on th...

Страница 14: ...U 231 List 6D can be looped up from the remote location CREM by issuing the 6 in 7 command at the HRU 412 DS1 input port 8 The HRU 412 can be looped up from the remote location CLOC by issuing the 5 i...

Страница 15: ...ncluding the frame bit occur in the returned pattern 10 errors if ILR 1 were sent followed by Normal looped data Note that this error pattern will repeat every 20 seconds as long as the IOR loopback p...

Страница 16: ...101 5 1110 E 1010 A TIME OUT OVERRIDE Loopback Time out Override 1101 D 0101 5 1101 D 0110 6 FAR END NI ACTIVATE Unblock AIS pass 2 in 5 1100 C 0101 5 0101 5 0100 4 IOR POWER DOWN HLU Removes HDSL lin...

Страница 17: ...rame bit occur in the returned pattern 10 errors if ILR 1 were sent followed by Normal looped data Note that this error pattern will repeat every 20 seconds as long as the IOR loopback pattern is bein...

Страница 18: ...1 5 1110 E 1010 A TIME OUT OVERRIDE Loopback Time out Override 1101 D 0101 5 1101 D 0110 6 FAR END NI ACTIVATE Unblock AIS pass 2 in 5 1100 C 0101 5 0101 5 0100 4 IOR POWER DOWN HLU Removes HDSL line...

Страница 19: ...d to execute all the HiGain loopbacks shown in Figure 5 Note that all code sequences must be present for at least five seconds ABBREVIATIONS USED BELOW LU LoopUp LD LoopDown NI Network Interface CI Cu...

Страница 20: ...codes required to execute all the HiGain system loopbacks shown in Figure 5 Note that all code sequences must be present for at least five seconds ABBREVIATIONS USED BELOW LU LoopUp LD LoopDown NI Net...

Страница 21: ...ogic errors including the frame bits occur in the returned pattern 10 errors if ILR 1 were sent followed by Normal looped data Note that this error pattern will repeat every 20 seconds as long as the...

Страница 22: ...K Alternate Query loopback 1101 D 0101 5 1110 E 1010 A TIME OUT OVERRIDE Loopback Time out Override 1101 D 0101 5 1101 D 0110 6 IOR POWER DOWN HLU Removes HDSL line power 0110 6 0111 7 0110 6 0111 7 N...

Страница 23: ...he simplex DC voltage and Loop 2 is specified to carry the simplex DC voltage LOOPBACKS SMJK Smart Jack Loopback Loopback at HRU 412 remote towards network initiated by 2 in 5 in band loopback code or...

Страница 24: ...r time interval Earlier later data in four hour chunks on six different screens can be accessed by pressing P Previous or N Next respectively All of the counters can be set to zero by pressing C Clear...

Страница 25: ...de this range indicate out of tolerance components or excessive temperature drift in critical components HDSL 24 Hour ES Errored Seconds The number of 1 second intervals that contained at least 1 CRC...

Страница 26: ...Signal 2 The HLU HRU transceivers are trying to establish contact with each other ACQ 1 or 2 Acquisition 1 or Acquisition 2 The HLU HRU multiplexers are trying to establish synchronization over each...

Страница 27: ...Displayed during System Settings review mode defined above CODE Line Code AMI B8ZS This is the line code that HLU 231 List 6D is receiving at its DSX 1 interface Displayed during System Setting review...

Страница 28: ...Section 150 231 164 Revision 04 Page 28 Figure 6 HLU 231 List 6D Main Menu Figure 7 HLU 231 List 6D non Doubler Status...

Страница 29: ...Issue 1 Section 150 231 164 Revision 04 Page 29 Figure 8 Set Clock Menu Figure 9 HLU 231 List 6D System Settings Main Menu...

Страница 30: ...Section 150 231 164 Revision 04 Page 30 Figure 10 HLU 231 List 6D non Doubler Loopback Menu Figure 11 HLU 231 List 6D non Doubler Performance Data...

Страница 31: ...Issue 1 Section 150 231 164 Revision 04 Page 31 Figure 12 HLU 231 List 6D non Doubler Performance Data History Figure 13 HLU 231 List 6D non Doubler Alarm History...

Страница 32: ...guration shelves These guidelines limit the maximum fuse load to 85 of shelf rated capacity Use Table 12 when selecting the appropriate load fuses for the Building Distribution Fuse Bus BDFB when depl...

Страница 33: ...re Use this data to perform this analysis on a case by case basis 3 LOOPBACK OPERATION 3 01 The HiGain system has a family of loopback options The most important of these is the Smart Jack loopback wh...

Страница 34: ...etwork CDU1 and CDU2 are towards the customer All four loopbacks can be initiated by the 16 bit in band commands in SPLB states A1LB A2LB A3LB as described in Tables Table 14 Table 15 Table 16 respect...

Страница 35: ...push button procedure permits any of the four HiGain loopbacks to be executed activated The next loopback option can be presented by pressing the MODE push button however the previously executed loop...

Страница 36: ...31 List 6D DSX 1 interface verify that the HLU 231 List 6D Table 1 is making a positive connection with the mounting assembly s connector Also verify that the equalizer is set to EXT for driving exter...

Страница 37: ...ge loopback from the remote location CDU1 by issuing the 4 in 6 loopback command at the HRU 412 DS1 input port 10 Doubler 1 can engage loopback from the local location NDU1 by issuing the 2 in 6 loopb...

Страница 38: ...rors including the frame bit occur in the returned pattern 10 errors if ILR 1 were sent followed by Normal looped data Note that this error pattern will repeat every 20 seconds as long as the IOR loop...

Страница 39: ...01 D 0101 5 1101 D 0101 5 IR ALTERNATE QUERY LPBK Alternate Query loopback 1101 D 0101 5 1110 E 1010 A TIME OUT OVERRIDE Loopback Time out Override 1101 D 0101 5 1101 D 0110 6 FAR END NI ACTIVATE Unbl...

Страница 40: ...s including the frame bit occur in the returned pattern 10 errors if ILR 1 were sent followed by Normal looped data Note that this error pattern will repeat every 20 seconds as long as the IOR loopbac...

Страница 41: ...01 D 0101 5 1101 D 0101 5 IR ALTERNATE QUERY LPBK Alternate Query loopback 1101 D 0101 5 1110 E 1010 A TIME OUT OVERRIDE Loopback Time out Override 1101 D 0101 5 1101 D 0110 6 FAR END NI ACTIVATE Unbl...

Страница 42: ...e seconds ABBREVIATIONS USED BELOW LU LoopUp LD LoopDown NI Network Interface CI Customer Interface ESF DL Extended Super Frame Data Link ADDRESSABLE 3 A3LB REPEATER LOOPBACK COMMANDS Position Name Co...

Страница 43: ...be present for at least five seconds ABBREVIATIONS USED BELOW LU LoopUp LD LoopDown NI Network Interface CI Customer Interface ESF DL Extended Super Frame Data Link ADDRESSABLE 4 A4LB REPEATER LOOPBAC...

Страница 44: ...g the frame bit occur in the returned pattern 10 errors if ILR 1 were sent followed by Normal looped data Note that this error pattern will repeat every 20 seconds as long as the IOR loopback pattern...

Страница 45: ...1 3 IR QUERY LPBK Query loopback 1101 D 0101 5 1101 D 0101 5 IR ALTERNATE QUERY LPBK Alternate Query loopback 1101 D 0101 5 1110 E 1010 A TIME OUT OVERRIDE Loopback Time out Override 1101 D 0101 5 110...

Страница 46: ...ns and only NLOC NREM CLOC CREM are available for non Doubler applications 5 07 Figure 23 through Figure 26 show the PERFORMANCE DATA screens for Doubler applications Both the Errored and Unavailable...

Страница 47: ...bler and the HRU 412 for two Doubler circuits TABLE 19 HLU 231 LIST 6D STATUS MENU MESSAGES Message Full Name Description ALARMS NONE No Alarms LLOS Local Loss of Signal No signal from HLU 231 List 6D...

Страница 48: ...Doubler 2 Loopback Loopback at Doubler 2 towards network initiated by IOR code or HLU 231 front panel MANUAL LOOPBACK push buttons or maintenance terminal Figure 14 CLOC Customer Local Loopback Loopba...

Страница 49: ...cal components HDSL 24 Hour ES Errored Seconds The number of 1 second intervals that contained at least 1 CRC error This value is a running total of the last 24 Hours HDSL 24 Hour UAS Unavailable Seco...

Страница 50: ...n Loops 1 or 2 of span 1 S2L1 or 2 Signal 2 Loop 1 or Loop 2 The 1st Doubler and either HRU or 2nd Doubler transceivers are trying to establish contact with each other on loops 1 or 2 of span 2 S3L1 o...

Страница 51: ...ceive any response from the HRU Thus the HRU s integrity is questionable VER HLU Software Version This is displayed during the System Settings review mode Depress the MODE button for 3 seconds LIST 0x...

Страница 52: ...Section 150 231 164 Revision 04 Page 52 Figure 15 HLU 231 List 6D Main Menu Figure 16 HLU 231 List 6D Status Display Span 1 1 or 2 Doublers...

Страница 53: ...Issue 1 Section 150 231 164 Revision 04 Page 53 Figure 17 HLU 231 List 6D Status Display Span 2 1 Doubler Figure 18 HLU 231 List 6D Status Display Span 2 2 Doublers...

Страница 54: ...Section 150 231 164 Revision 04 Page 54 Figure 19 HLU 231 List 6D Status Display Span 3 2 Doublers Figure 20 HLU 231 List 6D Set Clock Menu...

Страница 55: ...Issue 1 Section 150 231 164 Revision 04 Page 55 Figure 21 HLU 231 List 6D Systems Settings Menu Figure 22 HLU 231 List 6D Doubler Loopback Menu...

Страница 56: ...Section 150 231 164 Revision 04 Page 56 Figure 23 HLU 231 List 6D Performance Data Span 1 1 or 2 Doublers Figure 24 HLU 231 List 6D Performance Data Span 2 1 Doubler...

Страница 57: ...Issue 1 Section 150 231 164 Revision 04 Page 57 Figure 25 HLU 231 List 6D Performance Data Span 2 2 Doublers Figure 26 HLU 231 List 6D Performance Data Span 3 2 Doublers...

Страница 58: ...Section 150 231 164 Revision 04 Page 58 Figure 27 HLU 231 List 6D Performance Data History Span 1 1 or 2 Doublers Figure 28 HLU 231 List 6D Performance Data History Span 2 1 Doubler...

Страница 59: ...Issue 1 Section 150 231 164 Revision 04 Page 59 Figure 29 HLU 231 List 6D Performance Data History Span 2 2 Doublers Figure 30 HLU 231 List 6D Performance Data History Span 3 2 Doublers...

Страница 60: ...Section 150 231 164 Revision 04 Page 60 Figure 31 HLU 231 List 6D Alarm History Span 1 1 or 2 Doublers Figure 32 HLU 231 List 6D Alarm History Span 2 1 or 2 Doublers...

Страница 61: ...Issue 1 Section 150 231 164 Revision 04 Page 61 Figure 33 HLU 231 List 6D Alarm History Span 3 2 Doublers...

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