Siemens Model ADTRAN 9004 U-BR1TE II ISDN 2B1Q Interface For Siemens 9004 Owner Manual

PRACTICES

C A U T I O N !

SUBJECT TO ELECTROSTATIC DAMAGE

OR DECREASE IN RELIABILITY.

HANDLING PRECAUTIONS REQUIRED.

MODEL ADTRAN 9004 U-BR1TE II

ISDN 2B1Q INTERFACE FOR

SIEMENS 9004 A/B CHANNEL BANKS

INSTALLATION/MAINTENANCE

Section 61425020L2-5

Issue 1, November 1997

CONTENTS

1.

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

2.

INSTALLATION ................................................................ 2

3.

CONFIGURATION ............................................................ 3

4.

TESTING ............................................................................. 5

5.

SPECIFICATIONS ............................................................. 6

6.

WARRANTY AND CUSTOMER SERVICE ................... 6

FIGURES

Figure 1. Siemens 9004 U-BR1TE II .......................................... 1

Figure 2. Position Switch Settings at Network Locations .......... 2

Figure 3. SW1, SW2 and SW6 Labeling .................................... 3

Figure 4. 9004 U-BR1TE II Faceplate ........................................ 5

TABLES

Table A. Faceplate LED Indicators ............................................. 3

Table B. SW1, SW2, and SW6 Option Settings ........................ 4

Table C. Rotary Switch Options .................................................. 5

Table D. Specifications ................................................................ 7

UBR1TE II

1425020L2

TEST

5

6

LPBK CTX

LTX

NT1

4 1

3

2

B2

NM

B2

PTRN

TEST

SW5

SW3

SW4

O

N

1

2

3

4

O

N

1

2

SW1

SW2

1.

GENERAL

This practice provides installation and maintenance information for the 9004 U-BR1TE II L2, part number

1425.020L2, and the 9004 U-BR1TE II w/PWR L4, part number 1425.020L4. Figure 1 is an illustration of the

9004 U-BR1TE II.

The 9004 U-BR1TE II (L2 and L4) are line cards designed to operate with the Siemens 9004 A/B channel banks.

Both lists of the 9004 U-BR1TE II provide an ISDN Uinterface allowing transportation of Basic Rate ISDN

(2B+D) over T1 carriers. This allows ISDN service to be extended beyond the normal servicing range (18 kft) of an ISDN ready switch. Either list of the 9004 U-BR1TE

II may be used in the Central Office Terminal (COT) location and in the Remote Terminal (RT) location. Each list of the 9004 U-BR1TE II plugs into a single physical slot but requires up to three consecutive time slots when configured for 2B+D. Block Error Rate (BER) performance over the T1 facility is monitored and available to the network.

61425.020L2-5A

LP

ACT

TST ERR

CR

SW6*

*Applies to the ADTRAN 9004 U-BR1TE II w/PWR

ADTRAN P/N 1425.020L4

Figure 1. Siemens 9004 U-BR1TE II

The 9004 U-BR1TE II w/PWR provides an ISDN 2B1Q

U-interface that will supply 43 mA to span power an

ADTRAN ISDN U-Repeater II or U-Repeater III.

Each list of the 9004 U-BR1TE II is interchangeable with the

Siemens ISDN Basic Rate Interface Unit (BRIU), part number 91469-01 and the ADTRAN 9004 U-BR1TE L1.

Features of the 9004 U-BR1TE II (L2 and L4) include:

• ISDN 2B1Q interface meets all Layer 1 requirements as specified in ANSI T1.601-1992.

• Transports ISDN Basic Rate 2B+D information over T1 facilities in the 3-DS0 format per

TR-NWT-000397.

• 18 kft nominal range on mixed gauge wire (42 dB @

40 kHz loop loss, 1300

Ω

DC resistance).

• Respond to all Layer 1 maintenance functions.

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

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

Section 61425020L2-5, Issue 1 1

• Distinctive metallic DC test signature to identify either line unit LT or line unit NT mode of operation.

• B1 and B2 addressability at the faceplate for a local loopback, the NT1, and up to six devices in the network-to-customer direction.

• DS0 logic level transmit and receive data access through 91441 test adapter access jacks.

• Faceplate LEDs indicate operational and test status.

• Responds to OCU and CSU loopbacks in Leased modes.

Additional features to the L4 include:

• Provides repeater power of 43 mA at -28 to -120

VDC.

Each list of the 9004 U-BR1TE II has two interfaces. The loop-side interface is an ISDN U-interface that transmits and receives data simultaneous, full-duplex over a standard 2-wire and unloaded loop for a distance up to

18 kft of mixed gauge wire. Either 9004 U-BR1TE II list can be configured to connect to an ISDN switch

(Adjacent-to-Switch), the customer NT1

(Adjacent-to-Customer), another U-BR1TE (Tandem

Mode), or Adjacent to an ADTRAN U-RPM/U-repeater.

See Figure 2 for circuit location description. The carrier side interface provides mapping of up to 2B+D and DSL overhead to three DS0s of the 1.544 Mbps T1 stream.

Indicators for the loop and carrier synchronization status are located on the faceplate. See Table A for a description of each indicator. Connection to the U-interface is made to Tip/Ring of the physical shelf slot position of the

U-BR1TE.

2.

INSTALLATION

After unpacking the unit, immediately inspect it for possible shipping damage. If damage is discovered, file a claim immediately with the carrier, then contact

ADTRAN Customer Service (See Warranty and

Customer Service).

The 9004 U-BR1TE II plugs into a single shelf slot position of an Siemens 9004 A/B channel bank and requires no special wiring. Connection to the U-interface is made to Tip/Ring (T/R) of the physical shelf slot position when the U-BR1TE is installed. The type of the service selected can affect the adjacent shelf slots.

When configured for 2B+D mode of operation, which is the most typical application, three timeslots are required.

The timeslots used are the first slot position the 9004

U-BR1TE II is installed in, and the next two adjacent shelf slot position, which must be empty. In the 2B+D mode of operation, the 9004 U-BR1TE II cannot be located in slot 23 or 24. In 1B+D or 2B modes of operation, only one adjacent shelf slot position is required.

2

ISDN

Switch

2-wire

L

U

N

T

Siemens

9004 A/B

COT

Adjacent to Switch

SW2

1 OFF

2 ON

T Carrier

Siemens

9004 A/B

RT

L

U

L

T

Adjacent to Customer

SW2

SW6*

1 ON

2 ON

OFF

2-wire

Loop

Customer

NT1

2-wire L

U

N

T

Siemens

COT

Adjacent to Switch

SW2

1 OFF

2 ON

T Carrier

Siemens

RT

L

U

L

T

Tandem Office (Source)

SW2

SW6*

1 ON

2 OFF

OFF

2-wire L

U

N

T

Siemens

9004 A/B

COT

Tandem Office (Sink)

T Carrier

SW2

1 OFF

2 OFF

Siemens

9004 A/B

RT

L

U

L

T

Adjacent to Customer

SW2

1 ON

2 ON

SW6* OFF

2-wire L

U

N

T

Siemens

9004 A/B

COT

Adjacent to Switch

SW2

1 OFF

2 ON

T Carrier

Siemens

9004 A/B

RT

L

U

L

T

Tandem Office (Source)

SW2

SW6*

1 ON

2 OFF

OFF

U-RPM

2-wire

RP

U-Repeater

2-wire

Loop

2-wire

Loop

Customer

NT1

2-wire L

U

N

T

Siemens

9004 A/B

COT

Adjacent to Switch

T Carrier

*Siemens

9004 A/B

RT

L

U

L

T

Tandem Office (Source)

2-wire

RP

U-Repeater

SW2

1 OFF

2 ON

SW2

1 ON

2 OFF

SW6* ON

*Applies to the ADTRAN 9004 U-BR1TE /w PWR, PN 1425.020L4

2-wire

Loop

Customer

NT1

Figure 2. Position Switch Settings at Network Locations

Customer

NT1

Section 61425020L2-5, Issue 1 61425.020L2-5A

I n d i c a t o r

L o o p S y n c ( L P )

L o o p ( L P )

C a r r i e r S y n c ( C R )

C a r r i e r ( C R )

A c t i v a t i o n ( A C T )

T e s t ( T S T )

C o l o r

Table A. Faceplate LED Indicators

D e s c r i p t i o n

R e d I ll u m i n a t e d i n d i c a t e s l o w o p h e n U i n t e r f a c e i s y n c h r o n i z a t i o n s o u h a s t o f s y n c o r h a s a b e e n e s t a b il s h e d .

l o s s o f s i g n a l .

O F F

Y e ll o w

R e d

Y e ll o w

G r e e n

Y e ll o w

O f f d u

E r r o r s r i

( n

N g

E n o r m a l

B E ) o r o p e r a t i o

F a r E n d n

B o l o r c t e k s t

E r r m o o r s d e

( F s ,

E i n d i c a t e s

B E ) a r e d n e o t e

N e a r c t e d f

E n d r o m t

B l o c k h e U -

I n m t o e r r e f a c

C e

R l o

C o s p a r e d e t e c t e d .

.

a r e

F l d a

L o c a l P e r f o r m a n c e e s t h e e c t s e y d e a ll o w

M o n i t o r i n g n d

( u p s e o n e T r e c e i p t

E S T o

I N G ) f i ll u m i n a t e y e ll o w a N E B E

2 o

0 r F o r

E B E .

D u r i n g w i ll f l a s h y e ll o w w h e n 5 o r w h e n m o r e C R C s r

I l l e u m i c e i v n e a t d .

e d w h e n

O F F i n d n i c o f r a t e s a m c a i n g r r i e r p a t t e r n s y n c h r o

( T R T S n i z a t i o n

Y 0 0 h a s

0 3 9 7 b e e n c o m p l i a n t ) e s t a b il s h e d .

i s

O f f d u r i n g n o r m a l o p e a r e

F E B d e t e c t e d

E .

D u r i n f r g o m t h e

L o c a l r a c t i a r o n r i e r o

.

r t e s t m o d e s , i n d i c a t e s

F l a s h e s

P e r f o r m a n c e M o y n i e t o ll r o i w n g u

( p s o n e e r n o e c

T

N E B E s e i p t

E S T o f a

I N G ) o r

N w i

F E B E s

E ll

B f l

E a o r s h w h e n 5 o r m o r e C R C s a r e d e t e c t e d a n d i ll u m i n a t e y e ll o w w h e n 2 0 o r m o r e

C R C s a r e d e t e c t e d .

l l u m i n a t e d c u s t o m e r I S w h

D N e n L a y e t e r m i n a l r 1 i s e s t a b e q u i p m e n t .

l i s h e d f r o m t h e I S D N s w i t c h t o t h e

S o il d w h e n y e r e ll o w s p o n w h e n d i n g t o a a f r o n t

2 B p

+ D a n l o e l o p t e s t b a c k h a s r e b q u e e n e s t .

e v e r y t w o s e c o n d s s w h e n u c r c e e s s s f u p o n ll y d i i n n g i t i t a t e d o a F l a s h e s y e l l o w l o o p b a c k r e q u e s t .

F l a s h e s y e l l o w o n c e t w i c e e v e r y t w o s e c o n d s w h e n r e s p o n d i n g t o a

B 1

B o r

2 l o o p b a c k r e q u e s t .

E r r o r ( E R R )

G r e e n

R e d

S o il d p a t t e r

G r e e n w h e n n g e n / d e t i s i n L o c a l i n v o k e d .

P r e f o r m a n c e M o n i t o r i n g o r w h e n t h e l o c a l t e s t

F l a s h e s r e d w h e n e r r o r s a r e s e e n b y l o c a l t e s t p a t t e r n d e t e c t o r .

Therefore, slot 24 cannot be used. In 1B and D modes of operation, only the physical time slot of the shelf slot position is required, and there are no restrictions.

When the 9004 U-BR1TE II is deployed in a channel bank located at the same facility as the ISDN servicing switch (Adjacent-to-Switch) or in a tandem Office configuration, the channel bank should be provisioned for external timing. External timing from a suitable composite clock must have Stratum One traceability.

When deployed in a remote terminal (Adjacent-to-

Customer), the timing for that channel bank may either be loop-timed (LP) or timed from an external source.

Consult local provisioning documents for timing options.

3.

CONFIGURATION

There are several switch settings on the PCB that must be configured before installing the 9004 U-BR1TE II.

Figures 1 and 3 identify the location of these switches and their settings. Table B describes the settings for determining the appropriate switch positions. Figure 2 displays a typical circuit position and associated switch settings.

O

N

O

N

1 2 3 4

SW1

*Applies to the 9004 U-BR1TE II, L4

Part Number 1425.020L4

SW6*

POWER NORM

POWER

SW6

NORM

O

N

O

N

1 2 3 4

SW1

ON

O

N

LULT

(RT)

1

ADJ

2

LUNT

(COT)

TANDEM

SW2

ON

O

N

LULT

(RT)

1

ADJ

2

LUNT

(COT)

TANDEM

SW2

Figure 3. SW1, SW2 and SW6 Labeling

61425.020L2-5A Section 61425020L2-5, Issue 1 3

4

Table B. SW1, SW2, and SW6 Option Settings

S w i t c h

S W 1 1

S W 1 2

S W 1 3

L a

B 1

B 2

D b e l F u n c t i o n

S e r v i c e L e v e l S e l e c t i o n

D e s c r i p t i o n

S e l e c t s t h e s e r v i c l o p t i o n e d e v e l s o f t o d e il v s e r v i c e .

e r e f l e u ll v e

I l

S

.

D

S e r v i c e O p t i o n

T

N h e 9 0 0 4

( 2 B + D )

S W 1 1

U B R 1 T E o r a n y o f

I I t h e m a y f o ll b e o w i n g

S W 1 2 S W 1 3

2 B + D O n O n O n

2 B

B 1 + D

B 2 + D

B 1

B 2

D

O n

O f f

O f f

O n

O n

O f f

O f f

O n

O f f

O n

O f f

O n

O f f

O n

O n

O f f

O f f

O n

S

O

O

S

O

O

S

O

O

O

O

W f n f f n f f n n f

W f f

1

W 2

2

-

-

-

4

1

2

Z

Z

B

B

S

S

D

E

I S

N

L U L T ( R T )

L U N T ( C O T )

Z

D i s a

E

T

L e n e

U r r a

L o b m b l e s

T

L U N T i l

B e n y s a t t e i

Z B S

Z B S o

S n

M o d e

M o d e u b

M s t o

( R T

( C d i t t e u t

O T y i o p i t y n c a l ) p i c a l )

T h e

S W 1

Z

-

B

4

S s h o p o u t i l o d n b m u s t e s e t b e s e t t o w a r d t h e

“ Z s a

B S m e

E N ” f o r f o r t h e

A

C

M I

O

p

T a n d R r o v i s i o n

T .

e d c c a a r r r r i e i e r r s s

.

.

T h e s w

C o n s u l t i t l c h o c s e a l t t p r i n g i s o v i s i o p t i o n i n o g n a l f o r g u i d e

B 8 Z il n e s .

S p r o v i s i o n e d

T h i s s w i t c h s h o u l d b e s e t t o w a r d “ L U L T ” w h e n t h e u n i t i s i n s t a o r T a ll e d n d e a s m

A d j a c

O f f i c e e

S n t t o o u r

U c e

R c o e p e a t e r , n f i g u r a t i

A o n d

.

j a c e

T h i n t t o C s s w i t c u s t o m e r , h s h o u l d b e s e t t o w a r d “ L U N T ” f o r A d j a c e n t t o S w i t c h a n d T a n d e m

O f f i c e S i n k c o n f i g u r a t i o n s .

F u n c t i o n

F u n c t i o n i d e p e n d e n t s n o t a p p u p o n il c a b l e

S W 2 1 i n p o w s e r e t t i n g i n c g o i n n f n o i g u r n p o a t i o n w e r i n g

( S W 6 c o n f i g u r a t i o n .

t o P o w e r ) .

A

T

A

T

N

D

A N

D

O

J

J

A N

R

D

D

E M

E M

M

L U N T M o d e

D C

D C s s e e a a il il n n g g

( S W 2 1 O n ) c u r r e n t c u r r e n t p r o v i d e d n o t p r o v i d e d

I n t h e L U L T ( R T ) m o d e , S W 2 2 c o n t r o l s s e a il n g c u r r e n t .

W h e n c u r r e n t u s e d i n s h o u l d a n b e

A d j a c e n t t o C u s t o m e r p r o v i d e d ( S W 2 2 O n ) .

c o n f i g u r a t i o n ,

I n a T a n d e m s e a il n g

S s o h u o r u l c d e b c o n f i g u r a t i o n , e d i s a b l e d s e a il

( S W 2 2 n g

O c f f u

) .

r r e n t i s n o t r e q u i r e d , a n d

L U N T

P e r i o d

P e r i o d i i

M c c o d w a w a e k k e e

(

-

-

S W u u p p

2 1 t o n e t o n e

O f f ) n o t p r o p r o v i v i d e d d e d I n

P e t h r i e o d i

L U N T ( C O T ) c w a k e u p t o m n o e d s e a

, r

S e

W r e

2 q

2 u i r c e o d n

( t r

S o l s

W 2 p

e

2 r i o d

O f f i c

) w a k e u p t o n e .

P l o c a t e d i e n r i o d a n i c

A w d a k e j a c e

u p t o n e s s n t t o S w i t c h h l o u o c l d a b e t i o n d i s a b l e d

( S W 2 2 w h e

O n ) .

n w h e n l a o c a t e d d e v i c e i n a r e q

T a u i r i n d n g e m S i n k w a k e u p c o n f i g u r a t i o n , t o n e s , s u c h o r a s s w i t c h .

w a h e n

N e a d w b r j a c e n i d g e ® t t o

N o r m a l N o p o w e r i n g p r o v i d e d t o w a r d t h e c u s t o m e r U i n t e r f a c e .

S W 6 *

P O W E R P o w e r c u s t i n g o m e r p r

U o v i d e d t o w a

I n t e r f a c e .

r d t h e A u o p t o m a e r a t i t i o n c a i s ll y a d p p e t e r m i n e r o p r i a t e : s w h i c h

• o r

C o n s t a n t 4 3 m A

U R e p e a t e r I I I .

t o p o w e r a n A o

D f t h e f

T R A N o ll o w i n g

I S D N U m o d e s o f

R e p e a t e r I I

N o t e : P o w e r o p t i o n s h o u l d o n l y b e u s e d i n t h e L U L T ( R T ) c o n f i g u r a t i o n

* A p p il e s t o t h e 9 0 0 4 U B R 1 T E I I w / P W R , P / N 1 4 2 5 .

0 2 0 L 4

Section 61425020L2-5, Issue 1 61425.020L2-5A

4.

TESTING

The 9004 U-BR1TE II responds to the B1, B2 and 2B+D loopbacks as specified in TR-NWT-000397. This allows an upstream network element, such as the ISDN switch,

U-BR1TE, or U-interface testers to initiate industry standard EOC loopbacks. The faceplate can aid in circuit turn-up and, in case of equipment malfunction, sectionalize the network fault. For local test access, a

DS0 logic tester (equivalent to a TPI 108/109) can be used along with the ten position Address Select Knob,

TEST pushbutton, and B1/B2 switches to perform local and downstream loopbacks. See Figures 1 and 4 for location identification. In addition, non-intrusive local performance monitoring information is available through the faceplate LEDs. The faceplate LEDs provide the

U-BR1TE operational and test status indications.

The ten position rotary Address Select Knob (SW3) determines which downstream network element is to be looped. See Figure 1 for switch location and Table C for setting descriptions.

Table C. Rotary Switch Options

D i s p l a y

A D 1

I n t e r p e r t a t i o n

A d d r e s s # 1 , a d d r e s s o f t h i s u n i t

A D 2

A D 3

A d d r e s s a w a y

# 2 , t h e n e x t d o w n s t r e a m u n i t

A d d r e s s # 3 , d o w n s t r e a m t h e s e c o n d u n i t

U-BR1TE II

1425020L2

TEST

6

LBK CTX

LTX

NT1 5

4

3

B1

NM

2

1

B2

PTRN

TEST

TST ERR

LP CR ACT

Figure 4. 9004 U-BR1TE II Faceplate

Loopbacks in the network-to-customer direction can be initiated from the faceplate of the 9004 U-BR1TE II. Faceplate initiated loopbacks are unobtrusive to unused channels. Loopback on a single B channel will not interrupt the other channels. The

2B+D loopback is service affecting for the customer.

Faceplate indicators display the various conditions occurring with respect to the 9004 U-BR1TE II. Table A lists the faceplate indicators and their error messages.

L

A

A

A

D

D

D

P B

4

5

6

K

C R T X

L P T X

A d d r e s s # 4 , t h e t h i r d u n i t d o w n s t r e a m

A d d r e s s # 5 , d o w n s t r e a m t h e f o u r t h u n i t

A d d r e s s # 6 , t h e f i f t h u n i t d o w n s t r e a m t

L o o h e p b a s e l e c k c t

, e f o r c e s d B 1 o r t h i s

B 2 u n i t t o c h a n n l e o l .

o p b a c k

L o o p b a c k s a n d n e t w o o r k c c u r i n b o d i r e c t i o n s .

t h t h e c u s t o m e r

C a r r i e r t r a n s m i t , i n t h e c a r r i e r d i r e c t i o n

L o o p t r a n s m i t , i n t h e l o o p d i r e c t i o n

N T 1 N T 1 , a d d r e s s o f t h e N T 1

Selecting the B1/B2 DIP switch (SW4-1) sets the bearer channel. The NM/PTRN switch (SW4-2) selects between normal and internal 2047 pattern generator local test.

The Test pushbutton (SW5) activates and deactivates the test. See Figures 1 and 4 for switch locations.

The following describes local test access testing for local or remote loopbacks.

1.

Configure the DS0 tester for near logic and connect the Rx/Tx cables to the 91441 test adapter Bantam jack. Connect the clock cord between the DS0 tester and the 91441 test adapter. Finally, insert the 91441 paddle jack test interface into the U-BR1TE faceplate jack.

2.

Using the ten position rotary Address Select

Knob (SW3), select the desired address of the downstream unit to be tested. See Table C for address information.

3.

Select the appropriate bearer channel using the

B1/B2 DIP switch (SW4-1).

4.

To activate the loopback test, press the TEST pushbutton (SW5).

61425.020L2-5A Section 61425020L2-5, Issue 1 5

5.

Upon completion of the test, select another address using the ten position rotary switch, or another bearer channel (SW4-1).

6.

Upon completion of all testing, press the TEST pushbutton (SW5) and remove the 91441 test adapter access jack.

Performance Monitoring of the local T1 carrier system and 2-wire U-interface of ISDN data can be performed from the front panel without interruption of service to the customer. For this test, bearer channel selection is not applicable and a test pattern source is not required. To initiate local performance monitoring, perform the following:

1.

Ensure the NORM/PTRN DIP switch is in the

NORM position, and the paddle jack is NOT installed in the faceplate TX bantam jack.

2.

Select ADR1 using the ten-position rotary switch.

3.

Depress the recessed TEST push-button to initiate the test. The TEST LED will illuminate

GREEN.

4.

The total number of Near End Block Errors

(NEBE) received are simultaneously displayed as crc errors with the LP and CR CRC status

LEDs. (See Table D).

5.

To exit Local Performance monitoring, depress the TEST button for two seconds or longer.

Upon deactivation of the test, the TEST LED will go out.

For leased mode applications, the D channel is typically disabled on the 9004 U-BR1TE II. Without the D channel, standard ISDN loopbacks by way of the eoc are not available across the T1 carrier system. For this situation the ADTRAN 9004 U-BR1TE II responds to independent network-issued OCU and CSU latching loopback sequences for B1 and B2, when configured as

Adjacent-to-Customer.

Enabling OCU latching loopback sequence:

1.

Minimum of 35 transition in progress (TIP) bytes

(*0111010).

2.

Minimum of 35 OCU loopback select code (LSC) bytes (*1010101).

3.

Minimum of 100 loopback enable (LBE) bytes

(*1010110).

4.

Minimum of 32 far-end voice (FEV) bytes

(*1011010).

* Denotes Don’t Care bit - either a 1 or a 0.

If the 9004 U-BR1TE II detects a CSU latching loopback sequence in either B1 or B2 service and the U-interface is in sync, the 9004 U-BR1TE II will issue the corresponding eoc loopback request to the NT1. If the

U-interface is not in sync, the 9004 U-BR1TE II sends abnormal station (*0011110) in both services of B1 and

B2.

Enabling CSU latching loopback sequence:

1.

Minimum of 35 TIP bytes.

2.

Minimum of 35 CSU LSC bytes (*0110001).

3.

Minimum of 100 LBE bytes.

4.

Minimum of 32 FEV bytes.

* Denotes Don’t Care bit - either a 1 or a 0.

Disabling OCU or CSU latching loopback sequence:

1.

Minimum of 35 TIP bytes.

The valid front panel tests in leased modes are ADR1,

CRTX, LPTX, and LPBK for all circuit positions. NT1,

ADR1-ADR6 loopback tests are valid for the Adjacent to

Customer circuit position only. ADR2 would be used to test an ADTRAN U-Repeater deployed from the 9004

U-BR1TE II.

5.

SPECIFICATIONS

Refer to Table D for product specifications.

6.

WARRANTY AND CUSTOMER SERVICE

ADTRAN will replace or repair this product within ten years from the date of shipment if it does not meet its published specifications or fails while in service (see

ADTRAN Equipment Warranty, Repair, and Return Policy and Procedure).

Return Material Authorization (RMA) is required prior to returning equipment to ADTRAN.

For service, RMA requests, or further information, contact one of the following numbers:

ADTRAN Technical Support ............. (800) 726-8663

Standard support hours, Monday-Friday, 7am-7pm CST

Emergency Support:, 7 days/week, 24 hours/day

ADTRAN Sales ................................... (800) 827-0807

ADTRAN Repair/RMA ........................ (205) 963-8722

Repair and Return Address

ADTRAN, Inc.

Customer Service Department

901 Explorer Boulevard

Huntsville, Alabama 35806-2807

6 Section 61425020L2-5, Issue 1 61425.020L2-5A

Table D. Specifications

I n p u t / O u t p u t S i g n a l

L i n e

O p e r a t i n g M o d e

D a t a R a t e

S i g n a l F o r m a t

L i n e L o s s

2

F u w i r e ll D u p l e x

1 6 0 k b p s ;

2 B 1 Q

1 4 4 k b p s a v a il b l e t o c u s t o m e r

4 2 d b @ 2 0 k H z 1 3 0 0 D C

P o w e r

V o l t a g e

C u r r e n t

P o w e r

L 2

4 8 V ( T a l k B a t .

)

7 .

5 m A

0 .

8 W m a x

+ 5 V

7 5 m A

+ 1 2 V

2 m A

L 4 *

4 8 V ( S i g .

B a t .

)

1 0 5 m A

1 .

7 5 W m a x

+ 5 V

7 5 m A

S e a l i n g C u r r e n t

C o n s t a n t 6 8 m A c o n s t a n t

R e p e a t e r P o w e r i n g C u r r e n t *

C o n s t a n t 4 3 m A c o n s t a n t

+ 1 2 V

2 m A

H e i g h t

W i d t h

D e p t h

W e i g h t

M o u n t i n g

D i m e n s i o n s

4 .

7 5 i n

1 .

1 0 i n

( 1 4 .

8

( 2 4 .

0 c m ) .

c m )

1 1 .

4 i n

8 .

0 o z

( o .

1 5

( 2 2 6 .

8 c m ) g )

M o u n t s i n a S i e m e n s 9 0 0 4 A / B c h a n n e l b a n k

O p e r a t i n g E n v i r o n m e n t

T e m p e r a t u r e

H u m i d i t y

O p e r a t i n g

0 °

T o t o 5 0

9 5 % ,

° C ( 3 2 ° t o 1 3 1 ° n o n c o n d e n s i n g

F )

* A p p il e s t o t h e A D T R A N 9 0 0 4 U B R 1 T E I I w / P W R , P / N 1 4 2 5 .

0 2 0 L 4

S t o r a g e

4 0 ° t o 8 5 ° C ( 4 0 ° t o 1 8 5 ° F )

61425.020L2-5A Section 61425020L2-5, Issue 1 7