ADTRAN D4-n x 56 DSU DP Manual de usuario

SECTION XXXXXXX-XX

PAGE 1

D4-

x 56/64 DSU DP

x 56/64 DATA SERVICE UNIT DATAPORT

SECTION XXXXXXX-XX

PAGE 2

D4-

x 56/64 DSU DP

x 56/64 kB/s

Data Service Unit Dataport

FEATURES BENEFITS

• Plugs into WECO®D4 or equivalent, SLC 96, and • Compatible with a large installed base of channel

the ADTRAN ACT 1 and AD4-24 channel banks banks

• Operates at data rates of

x 56 or

x 64 where • Numerous bandwidth requirements supported by

= 1 to 24 or 56 kB/s to 1.536 MB/s one card

• Supports 64K Clear Channel operation • Allows more efficient utilization of network bandwidth

• Selectable stuff bit in non-Clear Channel (56 kB/s) • Ensures network required 1s density; provides

mode capability to avoid false yellow alarm occurrences

• Data may be assigned to consecutive or alternating • Supports full and fractional T1 network services

time slots

• EIA 530 and V.35 interfaces supported • Compatible with existing DTE interfaces

• Allows for bridging by disabling received data and • Provides for both point-to-point and multipoint modes

timing outputs while allowing transmit data and

timing inputs to be unterminated

• Test modes include Local Loopback, Remote • Enables quick and accurate problem isolation

Loopback (V.54 compatible), Remote Loopback

with Test Pattern, Self Test

• Provides both internal and external transmit clock • Enhances network synchronization options

selections

DESCRIPTION

TheADTRAN

x56/64DSUDPallowsfor connection

of Data Terminal Equipment (DTE) devices at very high

datarates. The

x56/64DSUDPacceptsdatafromthe

customerovereitheranEIA-530orV.35interface. Itthen

translates the composite bandwidth from the user into

individual 56 or 64 kB/s channels for transport through

either public or private network facilities. The number of

time slots utilized, which determines the amount of

bandwidthavailabletotheuser,isselectedbysettingthe

two rotary switches that program the value of

additionalswitchoptionallowsforselecting56kB/sor64

kB/smode. Thenetworkmustbecapableoftransporting

64 kB/s Clear Channel data before this option may be

utilized.

The combination of these two parameters determines

the operating bandwidth. This allows for data rates from

56K(

=1and56Kmode)to1.536MB/s(

=24and64K

mode). Data from the

x 56/64 DSU DP, in the form of

individual time slots of information, is routed to the

commonequipmentsectionof the channelbank. There,

it is combined with information from other channel unit

devicesto forma composite T1stream. The T1signal is

then available for transport over existing T1 or fractional

T1 service offerings. The inverse of the procedure

described above occurs at the remote channel bank

location and the composite bandwidth is reconstructed

and delivered to the remote user.

®WECO is a registered trademark of AT&T Technologies, Inc.

x 56/64 OPERATION (CONCEPTUAL)

ADTRAN ACT1 (or D4) CHANNEL BANK

EIA 530

384 kB/s DATA

x56/64 DSU DP

N=6

64K MODE

x56/64

176543224

6 TIME SLOTS

@ 64K=384K

NETWORK

x56/64

SECTION XXXXXXX-XX

PAGE 3

APPLICATIONS

VIDEO TELECONFERENCING AT 384 kB/s

LOCAL AREA TO WIDE AREA NETWORKING AT 512 kB/s

FILE TRANSFER APPLICATION AT 256 kB/s

ACT 1

56/64

(6 x 64)

384K

NETWORK

BRIDGE/

ROUTER

56/64

(8 x 64)

512K

NETWORK

x56/64

(4 X 56)

ACT 1 ACT 1

224K 224K

x56/64

(4 X 56)

SECTION XXXXXXX-XX

PAGE 4

SPECIFICATIONS

Data Rates: 56K Mode - 56,112, 168, 224, 280, 336, 392, 448, 504, 560,616, 672, 728, 784, 840, 896,

952, 1008, 1064, 1120, 1176, 1232, 1288, 1344 kB/s

64K Mode - 64, 128, 192, 256, 320, 384, 448, 512, 576, 640, 704, 768, 832, 896, 960, 1024,

1088, 1152, 1216, 1280, 1344, 1408, 1472, 1536 kB/s

DTE Interfaces: Conforms to EIA 530 and CCITT V.35 specifications

DS1 Facility Interface: Fully compliant with D4 channel bank equipment

Options: Selection of

(1 to 24)

Stuff Bit Location (Bit 8 or 2)

Mode of Operation (56 or 64 kB/s)

Time Slot Arrangement (Consecutive or Alternating)

Data Polarity (Normal or Inverted)

DTE Interface (V.35 or EIA 530)

Transmit Timing (Internal or External)

Receive Outputs (Enable or Disable)

Transmit Inputs (Terminated or Unterminated)

Backplane DTE Interface (Connected or Disconnected)

Faceplate Indicators: LLB Local Loopback

RLB Remote Loopback

ERR Error

TD Transmit Data Active

RD Receive Data Active

Test Modes: Local Loopback, V.54 Remote Loopback, V.54 Remote Loopback with

Test Pattern (Test Pattern 511), Self Test

Mechanical: Size - 4.4 inches high, 1.4 inches wide,

10 inches deep

Weight - 12 ounces (nominal)

Mountings - D4, ADTRAN ACT 1, ADTRAN AD4-24

channel banks

Environmental Operating Temperature - 0°to 50°C

Storage Temperature - -40°to 85°C

Relative Humidity - Up to 95%, non-condensing

ORDERING INFORMATION

Equipment ADTRAN Part Number

D4-

x 56/64 DSU DP 1100025L1

61100.025L1-8B

April 1992

Printed in USA

Specifications subject to change without notice

4955 Corporate Drive • Huntsville, Alabama 35805 • (205) 837-7800 • FAX (205) 722-8699

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