ADTRAN SLC-5 U-BR1TE III User Manual

SLC-5 U-BR1TE III w/PWR and DDS Loopbacks

ISDN 2B1Q Interface

Installation and Maintenance

1. GENERAL .............................................................................. 1

2. INSTALLATION .................................................................... 3

3. TESTING ................................................................................ 8

4. MAINTENANCE ................................................................. 13

5. WARRANTY AND CUSTOMER SERVICE ..................... 13

FIGURES

Figure 1. ADTRAN SLC-5 U-BR1TE III ................................. 1

Figure 2. SLC-5 U-BR1TE Slot Placement Examples ............. 3

Figure 3. Backplane Pin Assignments ...................................... 4

Figure 4. SW1 and SW2 Labeling ............................................ 4

Figure 5. Position Switch Settings at Network Locations for

ISDN Applications ..................................................... 6

Figure 6. SLC-5 U-BR1TE III IDSL/DDS Circuit Diagram.... 7

Figure 7. IDSL/DDS Loopback Response .............................. 11

Figure 8. ADTRAN U-BR1TE Bidirectional Loopback ........ 11

Figure 9. IDSL/DDS Remote End Initiated Loopback, Local

Loop .......................................................................... 12

Figure 10. IDSL/DDS Remote End Initiated Loopback,

Customer Loop ......................................................... 12

Figure 11. IDSL/DDS Trouble Codes ....................................... 13

SW2

SW1

Section 61102040L4-5B

Issue 2, January 2001

CLEI Code #5SC597IF_ _

UBR1TE III

PWR / DDS 1102040L4

ACT

B 2

B 1

SW3

TABLES

Table 1. SLC-2000 CIT Provisioning Options ........................... 3

Table 2. Internal Switch Option Settings .................................... 5

Table 3. Rotary Switch Legend ................................................... 8

Table 4. Front Panel LED Indication .......................................... 9

1. GENERAL

This practice provides installation and maintenance information for the ADTRAN

SLC-5 U-BR1TE III w/ PWR and DDS Loopbacks (U-BR1TE III). Figure 1 is an illustration of the unit. The 1102040L4 is a direct replacement and fully compatible with the previous ADTRAN SLC-5 U-BR1TEs, including the 1100040L1, 1100040L3, 1102040L2, and the 1102040L1.

ISDN/DDS

The U-BR1TE III employs features for both ISDN and DDS transport. ISDN comprises the major functionality and is described in this section. A description of DDS functionality is located in Section 3.

Revision History

This document has been revised to correct switch SW1-5 function described in Table 2.

Figure 1. ADTRAN SLC-5 U-BR1TE III

Functional Description

The U-BR1TE III is a channel unit for use in the AT&T® SLC Series 5 and Series 2000 Digital Loop Carrier Systems. The SLC-5 U-BR1TE III w/PWR and DDS Loopbacks combines the functionality of a standard SLC-5 U-BR1TE III and a U-Repeater Powering Module which will simplify the installation of the U-Repeater when deployed from a Digital Loop Carrier (DLC) facility. Span powering also allows deployment of 2-wire DDS when an IDSL OCU-R is used to terminate the ISDN local loop. This eliminates the need to provide AC power at the customer premises.

The U-BR1TE III can be used in SLC-5 Central Office Terminal (COT) deployed as Feature Package C (FPC), and SLC-5 Remote Terminals (RT) deployed as Feature Package C without Autocut (FPC/AC) and Feature Package B. The U-BR1TE III will also operate in SLC-2000 COTs and RTs when deployed as SLC Mode 1. Clear Channel capability (B8ZS) is not required of the T1 facility if zero byte substitution (ZBS) is enabled on the U-BR1TE III. The U-BR1TE III plugs into a single physical slot of the channel bank. Three time slots are required for

Trademarks: Any brand names and product names included in this document are trademarks, registered trademarks, or trade names of their respective holders.

Section 61102040L4-5, Issue 261102040L4-5B

transport of 2B+D information. Block error rate performance over the T1 facility is monitored and is available to the network.

The SLC-5 U-BR1TE III incorporates a feature that allows for detection of ISDN capable and non-ISDN capable SLC-5 Bank Controller Units (BCU). In addition, the unit will facilitate communications to the non-ISDN capable BCU for the time slots associated with the adjacent physical slot, eliminating the need for the NULL Channel Unit, P/N 1200102L1 in the non-ISDN SLC-5 terminals. Earlier versions of the SLC-5 BCU will not recognize an ISDN channel unit ID, and will not assign the required time slots of the next physical position for 2B+D operation. For previous versions of the SLC-5 U-BR1TE, a NULL Channel Unit, which communicates to the non-ISDN capable BCU, is required to reserve the associated time slots for 2B+D service.

• Loopback release in response to TIPs generated from the network direction per TR62310.

• Remap all subsequent DS0 DP loopback codes into respective eoc loopbacks to loopback respective downstream U-Repeaters, TRISDN elements, and U-BR1TES when optioned for 1B+D, or 2B+D.

• Pass OCU loopback code through to loop the IDSL OCU-R.

• Pass CSU loopback code through to loop the CSU/DSU and simultaneously send a remap to the NT1 eoc address.

• Transmit “Mux out of Sync” (MOS) upstream in B1 during DSL loop open, loss of signal, or loss of sync condition.

• Returns Abnormal Station Code (ASC) to the network in B1 during loopback conditions initiated by the IDSL OCU-R.

By automatically determining the version and requesting the necessary time slots for the non-ISDN capable BCUs, the U-BR1TE III eliminates the confusion regarding 2B+D deployment, and the requirement of deploying the NULL Cards. The U-BR1TE III will operate properly when a NULL Card is installed in the adjacent physical slot, as in a replacement situation.

Features

U-BR1TE III features support both ISDN and DDS, plus features common to both as listed here:

ISDN Features:

• Span powers U-repeaters with 43 mA @ -28 to

-120 Vdc for ISDN applications.

• Provides for the transport of ISDN Basic Rate 2B+D information over T1 facilities in the 3-DS0 format specified in TR-NWT-000397.

• NULL card not required with non-ISDN BCUs.

• B1 or B2 loopback addressability at the faceplate for the NT1 and up to six devices in the Network-to-Customer direction.

• Compatible with MLT 3.0/ISDN per TR-NWT-000397, Issue 3, December 1993.

DDS Features:

• Span powers an IDSL OCU-R with 12 mA @ -120 Vdc for DDS applications.

• Perform bidirectional loopback (loop and network) when commanded into DS0 DP loopback from the network direction only.

Common Features:

• ISDN 2B+D interface which meets all Layer 1 requirements as specified in ANSI T1.601-1992.

• 18 kft nominal range on mixed gauge wire (42 dB @ 40 kHz loop loss, 1300 Ω DC resistance design).

• All Layer 1 maintenance functions.

• Performance monitoring of the Layer 1 facility as specified in TR-NWT-000397.

• A distinctive metallic DC test signature to identify either Line Unit Loop Termination (LULT) or Line Unit Network Termination (LUNT) mode of operation as specified in TR-NWT-000397.

• DS0 logic level transmit and receive data access through the front panel RJ-45 jack.

• Loop, carrier, and synchronization status available at the front panel.

• Compatible with AT&T SLC-2000, SLC Mode 1.

• Compliant with TR-TSY-829, TR-TSY-1089, FCC Part 15, Class A, and UL-1459.

ADTRAN has obtained the necessary licenses that grant the right to develop a SLC-5 U-BR1TE III. The ADTRAN U-BR1TE III replaces the AT&T AU92 (COT) and AU93 (RT) BR1TE channel units. The U-BR1TE III (TR 397 compliant) will not function with the AT&T BR1TE channel units across the T1 carrier facilities. The U-BR1TE III must be terminated across the T1 carrier facilities with another channel unit that meets TR 397.

Section 61102040L4-5, Issue 2 61102040L4-5B

C A U T I O N

The U-BR1TE III will function with any ISDN 2B1Q U-interface that is ANSI T1.601 compliant.

2. INSTALLATION

2B+DI

2B+D Empty

312

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 noted, file a claim with the carrier, then contact ADTRAN. See Warranty and Customer Service.

To install the U-BR1TE III, hold the unit by the front panel and insert it into the assigned slot until the edge connector is firmly seated in the backplane. The ACT LED on the U-BR1TE III should illuminate GREEN. The CR and LP LEDs will flash GREEN then illuminate AMBER. At this point, push the unit latch upward until it locks into place.

NOTE

During installation rotary switch SW3 can be in any position except 7 (LPBK). LPBK is reserved for special testing functions.

SLC-5

The U-BR1TE III plugs into a single SLC-5 channel slot. Because two time slots are assigned to each physical slot in a SLC-5 channel bank, and a U-BR1TE III provisioned as 2B+D requires three time slots, there are restrictions that apply to the physical placement of the U-BR1TE III in the channel bank. Each SLC-5 digroup consists of 12 physical slots, which can be divided into four groups of three slots each (physical slots 1-3, 4-6, 7-9, and 10-12). These tri-slot groups are used to define the slot restrictions for the U-BR1TE III as follows (see Figure 2):

Available

III

2B+D

Available for Other

Services

1B+D

Empty

2B+D

1B+D

for Other

Services

645

Empty

978

Available for Other

Services

1210 11

Figure 2. SLC-5 U-BR1TE Slot Placement

Examples

SLC 2000

The U-BR1TE III operates in all SLC-2000 COT and RT shelves and can be used in combination with any mix of other SLC-2000 channel units. Currently, the unit will not operate in a mode 2 shelf. All option information for SLC-2000 channel units is entered using the SLC-2000 Craft Interface Terminal (CIT) and stored in the controller’s nonvolatile system memory. Once a slot is provisioned, it does not need to be provisioned again unless a different channel unit is installed in that slot.

Table 1 lists the options to set for the U-BR1TE III. The service provisioned should match the switch settings or the unit may not operate properly.

• A U-BR1TE III provisioned as 2B+D cannot be

• A U-BR1TE III provisioned as anything other

installed in the last slot of a tri-slot group (slots 3, 6, 9, or 12).

than 2B+D cannot be installed in the physical slot to the immediate right of a U-BR1TE III provisioned as 2B+D within a tri-slot group.

Section 61102040L4-5, Issue 261102040L4-5B

Table 1. SLC-2000 CIT Provisioning Options

noitpOTOC0002-CLSTR0002-CLS

IELCEJ1CS5EH1CS5

noitcnuF

edoC

ecivreS,D+1B,D+B2

BRI = Basic Rate Interface

IRBIRB

D,D+2B

,D+1B,D+B2

D,D+2B

NOTE

When the U-BR1TE III is optioned for B1 or B2, the SLC-2000 slot must be provisioned for D only. If the U-BR1TE III is optioned for 2B, then the SLC-2000 slot must be provisioned for B1+D.

Physical Requirements

The U-BR1TE III occupies one physical slot in the SLC-5 or SLC-2000 channel bank. The backplane pin assignments are illustrated in Figure 3.

Interface Requirements

The U-BR1TE III unit includes two interfaces. The loop-side interface is an ISDN U-interface which is used to deliver Basic Rate service. The carrier-side interface is a SLC-5 or SLC-2000 channel bank interface which is used to insert data into the 1.544 Mbps T1 stream. Only the polarity insensitive Tip and Ring leads are used in the cross-connection.

Switch Option Settings

See Figure 1 and Figure 4 for SW1 and SW2 location. The options for SW1 and SW2 are described in Table 2.

+5 S

+5R

GND

DCU

GND

NSR

DCU

8 KHz

GND

CHTR

CHTT

LPTR

LPTT

FRGRD

25 50

24 49

23 48

22 47

21 46

20 45

19 44

18 43

17 42

16 41

15 40

14 39

13 38

12 37

11 36

10 35

934

833

732

631

530

429

328

227

126

+5 S

-5 V

NSYNC

CTPCM

CRPCM

NPE

4 MHz

NP0

MSG

NMP

NMQ

64 KHz

RING *

TIP *

-48 V

SW2

LULT (RT)

O N

LUNT (COT)

LULT (RT)

1 O N

LUNT (COT)

ADJ

TANDEM

ADJ

TANDEM

N O

O N

B1B2D

SW1

234

ZBS

B1B2D

1 O N

ZBS ENA

PWR

DIS

ZBS ENA

PWR

234

DIS

ZBS

Figure 4. SW1 and SW2 Labeling

*2B1Q Signal Terminal

Figure 3. Backplane Pin Assignments

Section 61102040L4-5, Issue 2 61102040L4-5B

Table 2. Internal Switch Option Settings

hctiwSlebaLnoitcnuFnoitpircseD

1-1WS

2-1WS

3-1WS

noitceleSleveLecivreSebyamIIIET1RB-UehT.levelecivresehtstceleS

ehtfoynaro)D+B2(NDSIllufreviledotdenoitpo

.ecivresfoslevelgniwollof

epyTecivreS

NDSID+B2*nOnOnO

)spbk821(desaeLB2nOnOffO

SDD/NDSID+1BnOffOnO

NDSID+2BffOnOnO

desaeL/SDD1BnOffOffO

desaeL2BffOnOffO

NDSIDffOffOnO

ecivreS

noitpOnoitpO

noitpO

4-1WS

ffO

NESBZ

*SIDSBZ

SBZselbanE

SBZselbasiD

1-1WS

)1B()1B(

)1B(

2-1WS

)2B()2B(

)2B(

3-1WS

)D()D(

)D(

emasehttesebtsumnoitpoSBZehtD+2Bro,D+1B,D+B2nI "ANESBZ"drawottesebdluohs4-1WS.TRdnaTOCehtrof

roflanoitposignitteshctiwsehT.sreirracdenoisivorp-IMArof

tsumSBZsedomlennahcD-nonnI.sreirracdenoisivorp-SZ8B

htiwspbk65ro,spbk46sietarecivresSDDnehwdelbasideb

.senilediuggninoisivorplacoltlusnoC.lennahcyradnoces

5-1WS

ffO

*MRON

REWOP

lamroN

drawotdedivorpgnirewoP

.ecafretni-Uremotsuceht

;etairporppasinoitarepo

ecafretni-UremotsucehtdrawotdedivorpgnirewopoN

fosedomgniwollofehtfohcihwsenimretedyllacitamotuA

NDSINARTDAnarewopotAm34tnatsnocaylppuS•

.R-SDDLSDIro,IIIretaepeR-U,IIretaepeR-U

NARTDAnarewopotcdV021-tnatsnocaylppuS•

.R-UCOLSDI

1-2WS

*)TR(TLUL

edoMnoitanimreT

)lacipytTR(edoMTLUL

sitinuehtnehw"TLUL"drawottesebdluohshctiwssihT

,remotsuC-ot-tnecajdA,retaepeR-Uot-tnecajdAsadellatsni

hctiwssihT.noitarugifnocecruoSeciffOmednaTro

ffO

)TOC(TNUL

)TOC(edoMTNUL

dnahctiwS-ot-tnecajdArof"TNUL"drawottesebdluohs

.)5erugiFeeS(snoitarugifnockniSeciffOmednaT

2-2WS

*JDA

)nO1-2WS(edoMTLUL

dedivorptnerrucgnilaesCD

.tnerrucgnilaesslortnoc2-2WS,edom)TR(TLULehtnI

,noitarugifnocremotsuC-ot-tnecajdAnanidesunehW

anI.)nO2-2WS(dedivorpebdluohstnerrucgnilaes

ffO

MEDNAT

dedivorp

JDA

dedivorp

MEDNAT

dedivorp

tnerrucgnilaesCD ton

enotpu-ekawcidoireP ton

enotpu-ekawcidoireP

dna,deriuqertonsitnerrucgnilaes,ecruoSeciffOmednaT

.)5erugiFeeS()ffO2-2WS(delbasidebdluohs

)ffO1-2WS(edoMTNUL)ffO1-2WS(edoMTNUL

)ffO1-2WS(edoMTNUL

-ekawcidoirepslortnoc2-2WS,edom)TOC(TNULehtnI

nehwdelbasidebdluohssenotpu-ekawcidoireP.enotpu .)nO2-2WS(noitacolhctiwS-ot-tnecajdAnanidetacol nehw)ffO2-2WS(deriuqererasenotpu-ekawcidoireP

nehwro,noitarugifnockniSeciffOmednaTanidetacol

asahcus,senotpu-ekawgniriuqerecivedaottnecajda

.)5erugiFeeS(hctiwsegdirbweN

.noitarugifnoc)TR(TLULehtnidesuebylnodluohsnoitporewoP:etoN

gnitteSyrotcaF*

Section 61102040L4-5, Issue 261102040L4-5B

+ 9 hidden pages

ADTRAN SLC-5 U-BR1TE III User Manual

CONTENTS

FIGURES

TABLES

1. GENERAL

Figure 1. ADTRAN SLC-5 U-BR1TE III

2. INSTALLATION

Table 1. SLC-2000 CIT Provisioning Options

Figure 4. SW1 and SW2 Labeling

Figure 3. Backplane Pin Assignments

Table 2. Internal Switch Option Settings