Switch Specification Sheet

ManualsBrandsADTRAN ManualsSwitchD4 OCU DP (ETR) D4-OCU

1Section 61107005L2-5, Issue 361107.005L2-5C

C A U T I O N !

SUBJECT TO ELECTROSTATIC DAMAGE

OR DECREASE IN RELIABILITY.

HANDLING PRECAUTIONS REQUIRED.

PRACTICES

Section 61107005L2-5

Issue 3, June 1996

CLEI Code #

D4DA740 _ _ _

D4-OCU DP (ETR)

ALL-RATE OFFICE CHANNEL UNIT DATAPORT

WITH EXTENDED TRANSMIT RANGE

INSTALLATION/MAINTENANCE

1. GENERAL

This practice has been reissued to correct enhanced

Switch 56 references.

This practice is an installation and maintenance guide

for the ADTRAN Office Channel Unit Dataport (D4-OCU

DP) with Extended Transmit Range

(ETR). Figure 1 is

an illustration of the unit. A detailed product description

is found in ADTRAN D4-OCU DP Description Practice,

Section 61107005L2-2.

The Office Channel Unit Dataport (OCU DP) allows

access to the Dataphone

Digital Service (DDS)

Basic Digital Service using existing 4-wire metallic

facilities and D4 channel banks equipped for dataport

operation. In addition to this interchangeability, the

ADTRAN D4-OCU DP contains the following

enhancements:

• Extended loop range

(45 dB receiver range

when operated at all rates)

• Intermediate rate of 19.2 kbps; special format

________________________________________

Covered under I.N.C. patent number 4,887,278

Dataphone is a registered trademark of AT&T

Covered under ADTRAN patent number 4,759,035

Covered under I.N.C. Patent No. 4,862,480

Figure 1. ADTRAN D4-OCU DP

• Switched 56 capability

• Latching and normal loopbacks

• Latching loopback capability in SW56 mode

• Loss of sealing current disconnect

• Poor loop signal quality disconnect

• Hardware signaling selection

• 45 dB range at all rates

• Faceplate Bantam jacks

• Four diagnostic faceplate indicators

• Extended transmit range

Furnished with common equipment and individual channel

units, the D4 channel bank is a digital terminal providing

multiple-channel access to T carrier lines. The dataport

is a D4-type channel unit which allows direct digital

access to a T carrier time slot, avoiding the normal

analog-to-digital conversion required in a voice channel

unit.

OCU DP

1107005L2

D4-OCUDP

9.6

19.2

38.4

4.8

2.4

SW56

LOOP BACK

IDLE CKT

NO SX

AUTO DIS

RX (OUT)

TX (IN)

1 2 3 4 5 6 7 8 9 10

SW1

CONTENTS

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

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

3. CONNECTIONS..........................................................3

4. TESTING .....................................................................3

5. AUTO LOOP DISCONNECT ......................................4

6. MAINTENANCE ..........................................................4

7. WARRANTY AND CUSTOMER SERVICE ................4

FIGURES

Figure 1. ADTRAN D4-OCU DP.........................................1

Figure 2. Rate Option Switch .............................................2

Figure 3. SW1 .....................................................................3

Figure 4. Connector Pin Assignments ...............................4

TABLES

Table A. SW1 Option Settings ...........................................3

Summary of content (4 pages)

PAGE 1
Section 61107005L2-5 Issue 3, June 1996 CLEI Code # D4DA740 _ _ _ C A U T I O N ! SUBJECT TO ELECTROSTATIC DAMAGE OR DECREASE IN RELIABILITY. HANDLING PRECAUTIONS REQUIRED. PRACTICES D4-OCU DP (ETR) ALL-RATE OFFICE CHANNEL UNIT DATAPORT WITH EXTENDED TRANSMIT RANGE INSTALLATION/MAINTENANCE O 1 2 3 4 5 6 7 8 9 10 N CONTENTS GENERAL ................................................................... 1 INSTALLATION ........................................................... 2 CONNECTIONS ................
PAGE 2
In the DDS system, an OCU DP located at an end office interfaces the customer to the T carrier system. A 4-wire loop is terminated at the customer premises by a data service unit (DSU) or a channel service unit (CSU). It can be used in the hub office, intermediate office, end office, or SLC® terminal to extend the DDS network to that office which has previously served voice channels exclusively. No rate selection 64 56 56 38.4 38.4 19.2 SC 9.
PAGE 3
SW1 O 1 2 3 4 5 6 7 8 9 10 N SW1 O 1 2 3 4 5 6 7 8 9 10 N OFF OFF OFF OFF OFF OFF OFF OFF OFF ERROR CORRECTION D4 BANK SLC-96 MODE I, III TYPE SLC-96 MODE II ZERO CODE SUPPRESSION LATCHING LBK ENABLE ENHANCED SWITCHED 56 (OBSOLETE) AB SIGNALING QUALITY MONITOR ETR Figure 3. SW1 Table A. SW1 Option Settings Function Switch SW1-1 On .... Activates error correction Off .... Deactivates error correction SW1-2 On .... Selects D4 bank type. Off .... Unable to select D4 bank type. SW1-3 On ....
PAGE 4
28 1 FRM GND 29 2 -12V +5V 30 3 GND IN CLK 31 4 +12V TNEN 32 5 GND 33 6 TWD 34 7 TSP TDATA 35 8 TSQ RSAB 36 9 RNPCM This will cause the branch to be blocked at the next junction (MJU or QMJU). The D4-OCU DP detects poor received signal quality on the loop by monitoring for illegal bipolar violations. 6. MAINTENANCE 37 10 RFA RCLK 38 11 TDCLK RWD 39 12 RSQ 40 13 RSP 41 14 RNDIS 42 15 -48R The D4-OCU DP requires no routine maintenance to operate properly.