OCU DP OPTION MODULE

Part Number 1200068L1

Part Number 1200068L1#HS

OCU DP PLUG-ON BOARD

Part Number 1200083L1

USER MANUAL

61200.068L1-1C

November 1996

901 Explorer Boulevard

Huntsville AL 35806-2807

Phone: (205) 971-8000

© 1996 ADTRAN, Inc.

All Rights Reserved.

Printed in USA.

OCU DP OPTION MODULE

TABLE OF CONTENTS

1. Introduction ........................................................................................................

1

1.1 OCU DP Overview ..........................................................................................

1

1.2 Functional Description ....................................................................................

1

Features .............................................................................................................

1

OCU DP Option Module Specifications .......................................................

2

1.3 Physical Description ........................................................................................

4

Figure 1. OCU DP Option Module ..............................................................

4

2. Installation ..........................................................................................................

5

2.1 Unpack & Inspect ............................................................................................

5

2.2 Installing The Option Module .......................................................................

5

Figure 2. Installing Option Module .............................................................

6

2.3 WarrantyAnd Customer Service ...................................................................

7

2.4 Wiring .............................................................................................................

8

Table A. Eight-Position Modular Jack Interface. ........................................

8

2.5 Power-Up Testing and Initialization .............................................................

9

3. Operation ............................................................................................................ 10

3.1 Overview ............................................................................................................ 10

3.2 Front Panel ........................................................................................................ 10

Indicators/Buttons .......................................................................................... 10

3.3 Menu Structure ................................................................................................ 10

Figure 3. TSU 100 Main Menu ...................................................................... 10

OCU DP Menus Are All Submenus ..................................................................... 11

2)PORTS Status, Submenu of 1)Status ................................................................. 11

7)PORT CONFIG, Submenu of 2)CONFIG ......................................................... 12

3)FACTORY RESTORE, Submenu of 3)UTIL ..................................................... 14

7)PORT UTILITY, Submenu of 3)UTIL ................................................................ 14

2)RUN SELF TEST, Submenu of 4)TEST ............................................................. 15

3)PORT Test, Submenu of 4)TEST ........................................................................ 15

Figure 4. Diagram of Loopbacks .................................................................. 16

Appendix I OCU DP Failure Messages ............................................................... 18

Failure Messages At Power-Up ............................................................................ 18

OCU DP Alarm Messages ..................................................................................... 18

November 1996 61200.068L1-1C i

ii 61200.068L1-1C November 1996

1. INTRODUCTION

1.1 OCU DP OVERVIEW

The Office Channel Unit Dataport (OCU DP) is one of the Option Modules available for use with the

ADTRAN TSU 100. The OCU DP is an all-rate Office

Channel Unit Dataport. It provides signal conversion from any of the rates on the customer loop side to a single DS0 time slot. The OCU DP should be selected for use with the connection of DDS or Switched 56

DSU/CSUs or other equipment which utilizes a DDS interface. The OCU DP provides an interface between the T1 Multiplexer and a DSU/CSU over a 4-wire loop, up to 18,000 feet in length of 26 AWG cable. This interface permits the combination of DDS lines into a single T1 stream.

1.2 FUNCTIONAL

DESCRIPTION

The OCU DP is designed to fit in the option slot of the TSU 100 and is subject to its operation and control.

The OCU DP is configured from the front panel of the

TSU 100 or by an external personal computer (PC) program. The internal menus for its configuration are a part of the OCU DP module and are automatically installed when the OCU DP is plugged into the unit.

F

EATURES

November 1996

• Operates using one DS0

• 2.4, 4.8, 9.6, 19.2, 38.4, 56, 64 kbps dedicated rates

• Supports Switched 56 dial-up digital service

• Compatible with DDS secondary channel services at rates ranging from 75 to 2400 bps, depending on the primary channel rate

• 45dB range at all rates

• Transmit attenuation available for short loops

• OCU loopback toward TSU Network Interface (NI)

(front panel, remote, inband)

• Sealing current reversal to initiate loopback at the

CSU (front panel, remote, inband)

61200.068L1-1C 1

• PRT/LCL bidirectional loopback toward the TSU

Network Interface (NI) and the DSU/CSU

• Zero code suppression

• Quality monitor/auto line disconnect

• Latching Loopback enable/disable

• Selectable hardware/software algorithms for

Switched-56 operation

• Interface Connector-RJ48C

The 19.6 kbps feature is patented by INC, patent

#4,862,480. The 45 dB range feature is patented by

ADTRAN, patent #4,759,035. The quality monitor/

auto line disconnect feature is patented by ADTRAN, patent #5,450,441.

OCU DP O

PTION

M

ODULE

S

PECIFICATIONS

Loop Interface

Data Rate

4-wire (TX Pair and RX Pair)

2.4, 4.8, 9.6, 19.2, 38.4, 56 kbps including secondary channel rates and 64 kbps (clear channel)

Signal Format

TX Output

Amplitude

Bipolar, return-to-zero, 50% duty cycle

±

1.5V peak

±

10% for rates 2.4, 4.8,

19.2, 38.4, 54 and 64 kbps

±

0.75V peak

±

10% for 9.6 kbps

TX/RX Source

Impedance 135

Ω ±

20%

Dynamic Range 0 to 45 dB loops loss for all rates measured at a frequency of half the data rate

Sealing Current 4 to 20 mA DC with polarity reversal capability

2 61200.068L1-1C November 1996

Capacity

Tests

Connector

One DS0 (user configurable)

Power-on circuit test

CSU loopback initiation - (sealing current reversal)

OCU loopback (loopbackinternal toward MUX) PRT/

LCL (bidirectional loopback)

RJ48C

November 1996 61200.068L1-1C 3

1.3 PHYSICAL

DESCRIPTION

The OCU DP, see Figure 1, is an option module which plugs into the option slot in the rear of the TSU

100.

OCU DP

Port X.1

DDS.

NX 56/64

PORT X.2

V.35

Figure 1. OCU DP Option Module

The OCU DP rear panel includes a plastic plug over a cutout for additional connectors. This allows a "plug-on" card to be added to the OCU DP module.

The PORT X.1 indication is linked to the port numbering philosophy of the TSU 100 product family. The X represents the slot number, and the .1 indicates the port number. For the TSU 100 application, there is only one option slot. Therefore the port designation for the OCU DP port will be 1.1. If added, the plug on card port designation would be 1.2. These port numbers will appear in the front panel LCD menu displays.

4 61200.068L1-1C November 1996

2. INSTALLATION

2.1 UNPACK & INSPECT

Carefully inspect the OCU DP module for any shipping damages. If damage is suspected, file a claim immediately with the carrier and then contact

ADTRAN customer service. If possible, keep the original shipping container for use in shipping the

OCU DP Module back for repair or for verification of damage during shipment.

ADTRAN S

HIPMENTS

I

NCLUDE

• The OCU DP Option Module

• The OCU DP Option Module User's Manual

(To be inserted into main TSU 100 User's Manual)

C

USTOMER

P

ROVIDES

• Cable for connection to DSU/CSU

2.2 INSTALLING THE

OPTION MODULE

CAUTION

Power to the TSU 100 should be OFF when installing the OCU DP Module, PN 1200.068L1.

The OCU DP Option Module PN1200.068L1#HS, is hot replaceable and can be installed in the TSU 100 with the

power On.

P

LACEMENT OF THE

OM

Figure 2

is representative of the action required for proper placement of the Option Module.

• Remove the cover plate from the TSU 100 rear panel.

• Slide the option module into the rear panel until it is positioned firmly against the front of the TSU 100.

• Fasten the thumb-screws at both edges of the option module.

November 1996 61200.068L1-1C 5

P

OWER

C

ONNECTION

Each OCU DP module derives power from the base TSU 100 unit. Power to the TSU 100 is supplied by a captive eight foot power cord.

Cover Plate

TSU 100

Option Module

Figure 2. Installing Option Module

6 61200.068L1-1C November 1996

2.3 WARRANTY AND

CUSTOMER SERVICE

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

For detailed warranty, repair and return information refer to the ADTRAN Equipment Warranty, Repair and Return Policy Procedure in the TSU 100 User's

Manual.

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

For Service, RMA requests or more information, see the last page of this manual.

November 1996 61200.068L1-1C 7

2.4 WIRING

The OCU DP offers one connector for a DDS interface.

Connector Type (USOC)= RJ48C

PN= AMP # 555164-1

Table A. Eight-Position Modular Jack Interface

PINOUT CONNECTORS

FOR EIGHT-POSITION MODULAR JACK INTERFACE

PIN

1

2

3, 4, 5, 6

7

8

NAME

TIPRX

RING RX

UNUSED

TIPTX

RINGTX

DESCRIPTION

RECEIVE DATA FROM THE DSU

RECEIVE DATA FROM THE DSU

SEND DATA TOWARDS THE DSU

SEND DATA TOWARDS THE DSU

8 61200.068L1-1C November 1996

2.5 POWER-UP TESTING

AND INITIALIZATION

The OCU DP option module executes a self test during the power-up sequence, as described in the

TSU 100 User's Manual. No initialization input is required. Automatically, upon power-up, any previously configured setting for the OCU DP is restored.

When the self testing is complete and the configuration is successfully restored, it will be indicated by the illumination of the green "OK" LED in the MOD-

ULE group on the front panel. (See the section Front

Panel Operation in the TSU 100 User's Manual.) If the

OCU DP module fails one or more of the self tests, a message is displayed on the front panel during powerup. (See the section Power Up Testing and Initialization

in the

TSU 100 Manual) Specific failures of the OCU

DP module are shown in the appendix OCU DP

Failure Messages. If any alarms are detected during operation, it will be indicated by the illumination of the red "ALARM" LED in the MODULE group on the front panel.

November 1996 61200.068L1-1C 9

3. OPERATION

3.1 OVERVIEW

The OCU DP module is controlled as part of the

TSU 100 using the same methods as described in the user's manual.

3.2 FRONT PANEL

I

NDICATORS

/B

UTTONS

Please refer to the description of the TSU 100 front panel indicators and buttons in the user's manual.

3.3 MENU STRUCTURE

The OCU DP menus appear as a subset of and operate the same as menus for the TSU 100. The menus are accessed by selecting 1.1 OCU DP under the PORT menu items.

Figure 3

shows the TSU 100 Main Menu with the

PORT selections shaded.

The

TSU 100 User's Manual's appendix TSU 100

Menu Tree is a complete menu diagram.

10

MAIN MENU

1)STATUS

2)CONFIG

1)NETWORK (NI)

2)UNIT

3)MAP XCHNG

4)MAP IN USE

5)DS0 MAP A

6)DS0 MAP B

7)PORT CONFIG

3)UTIL

4)TEST

1)NETWORK TESTS

2)RUN SELFTEST

3)PORT TEST

Figure 3. TSU 100 Main Menu

1)NI PERF REPORTS

2)PORTS STATUS

3)ACTIVE ALARMS

4)VIEW HISTORY

1)ENTER PASSCODE

2)TIME/DATE

3)FACT RESTORE

4)REINIT UNIT

5)UNIT ID

6)SOFTWARE REV

7)PORT UTILITY

61200.068L1-1C November 1996

OCU DP MENUS

ARE ALL SUBMENUS

The OCU DP menus are accessed from and operated the same as menus for the TSU 100. As can be noticed from the shaded menu items in Figure 3, the

OCU DP items are submenu choices of the four main menus.

Each of the OCU DP sub menu items is discussed in the following paragraphs. All are accessed by the same method.

Operation

With the cursor on one of the four main menu choices

Press:

ENTER

or the number key

Results: display of the first two submenu items with the cursor on the first item.

Use: the down scroll key to place the cursor on the desired item

Press:

ENTER

Results: display of the first two submenu choices.

2)PORTS STATUS,

SUBMENU OF 1)STATUS

This menu item is used to display active status information about the OCU DP. There are three fields that report information. The display of an asterisk (*) indicates an item is active.

*

O P E N I D L E A D I S

Open An asterisk will be present if the DDS loop is open or wired incorrectly.

IDLE An asterisk will be present if the OCU is detecting Control Mode Idle (CMI) from the DDS loop.

ADIS An asterisk will be present if the Quality

Monitor Autodisconnect feature is enabled and the OCU has received enough improper violations to disconnect the DDS loop.

November 1996 61200.068L1-1C 11

7)PORT CONFIG,

SUBMENU OF 2)CONFIG

The 7)PORT CONFIG menu item is used for configuration of the OCU DP Passthru Option Module.

Operation

With the cursor on main menu item 2)CONFIG

Press:

ENTER

or the number 2 key

Results: display of the first two Configuration submenu items with the cursor on 1)NETWORK

Use:

(NI) the down scroll key to place the cursor on

7)PORT CONFIG

Press:

ENTER

Results: only the bottom line of the LCD changes display

Use: the scroll keys to identify 1.1 OCU DP

7 ) P O R T C O N F I G

P O R T : 1 . 1 O C U D P

12

To select

Press:

ENTER

Results: the first of eight submenu items

Continue with standard operating procedures.

RATE - Sets the data rate of the OCU DP.

Choices - 2.4, 4.8, 9.6, 19.2, 38.4, 56.0 DDS,

56.0 SW, 64

SEC CHAN - Enables or disables the use of a secondary channel with all data rates excluding

64 kbps.

Choices - OFF or ON

QUAL MON - Quality monitor function/Auto Disable Function. Allows the OCU DP to monitor the data it receives from the DDS loop. If it detects violations in 7 out of 20 consecutive seconds, it ignores the data it receives and sends abnormal station code toward the NI. Normal operation will automatically be restored upon receipt of 30 consecutive error free seconds.

61200.068L1-1C November 1996

Choices - OFF or ON

ZCS - Zero Code Suppression may be used to prevent a channel of zeros when running 56K data rate with secondary channel ON. ZCS is not used for 64 kbps data rate.

Choices - OFF or ON

A/B SIGNL - Selects either a software or hardware algorithm to be used for SW56 operation.

The OCU DP decodes signalling from the network and passes this to the loop as either CMI code or data mode. The default method of decoding signalling from the network is a software technique. If the C bit (bit 8) is 0 in any of the last seven data bytes, signalling is decoded as a 0 (onhook). If bit 8 is a 1 in all of the last seven data bytes, signalling is decoded as a 1 (off-hook).

If the hardware (HW) option is enabled, signalling is decoded from the A and B bits in frames

6 and 12 of the T1 data.

Choices - SW or HW

LTCHING LBACK - Enables the OCU DP response to the latching OCU and Channel loopback commands and performance of the requested test configuration.

Choices - ENABLED or DISABLED

TX LEVEL - Sets the Transmit Signal out of the OCU

DP to either Normal or Attenuated. For short line lengths it may be necessary to attenuate the transmit signal if the signal is large enough to saturate the DSU/CSU equipment being used.

Choices - NORMAL or REDUCED 10dB

November 1996 61200.068L1-1C 13

3)FACT RESTORE,

SUBMENU OF 3)UTIL

This menu item is used to restore the factory default setting for all OCU DP option module parameters.

Operation

Follow standard operating procedure to access the 3)UTIL menu items.

With the cursor on 3)FACT RESTORE

Press: the ENTER key

Results: the unit returns to the opening main menu with all factory preset defaults are restored.

7)PORT UTILITY,

SUBMENU OF 3)UTIL

The 7)PORT UTILITY menu item is primarily used to access the display of the current software information for each port installed in the unit. This information is required when requesting assistance from ADTRAN customer service or when updates are needed.

Operation

Follow standard operating procedure to access the 3)UTIL menu items.

With the cursor on 7)PORT UTILITY

Press: the ENTER key

Results: display of the first available port.

Use: the up and down scroll keys to identify 1.1

OCU DP

7 ) P O R T U T I L I T Y

P O R T : 1 . 1 O C U D P

14

To select

Press:

ENTER

Results: display of the option card name and the software version installed.

OCU DP REVA

Press: the CANCEL key to exit or to select another port.

61200.068L1-1C November 1996

2)RUN SELF TEST,

SUBMENU OF 4)TEST

This menu item is used to execute both the TSU

100's internal test and the OCU DP's internal test.

This is the same test as is executed upon power-up.

The results of the self test are displayed on the LCD.

For additional information on Self test, consult the chapter Operation in the TSU 100 User's Manual.

Follow standard operating procedure to access the 4)TEST menu items.

With the cursor on 2)RUN SELFTEST

Press: the ENTER key

Results: a changing display in the LCD showing the test result.

3)PORT TEST,

SUBMENU OF 4)TEST

This menu item is used to activate tests of the selected data ports. Selecting the OCU DP displays two Loopback tests available for this option module.

Operation

Follow standard operating procedure to access the 4)TEST menu items.

With the cursor on 3)PORT TEST

Press: the ENTER key

Results: display of the first available port.

Use: the up and down scroll keys to select 1.1

OCU DP

3 ) P O R T T E S T

P O R T : 1 . 1 O C U D P

November 1996

To select

Press:

ENTER

LOOPBACK - This item activates the loopback function on the OCU DP module.

On the OCU DP, the CSU loopback initiates a sealing current reversal. Upon detecting this rever-

61200.068L1-1C 15

T 1

sal, the DDS CSU (connected to the OCU DP over a 4wire loop) should loop data back toward the NI.

The OCU loopback loops the data mapped to the

OCU DP back toward the network interface of the controller. Using the loopback in conjunction with an external BERT driving the Network Interface, will exercise the entire data path from the Network Interface

(NI) through the OCU DP option module and back out the NI. See Figure 4, Diagram of Loopbacks.

TSU 100

OCU DP

Network Interface

(NI)

(Controller)

4-wire DDS

DSU/CSU

PRT/LCL OCU CSU

Figure 4. Diagram of Loopbacks

The PRT/LCL bidirectional loopback loops the data mapped to the OCU DP back to the network interface of the controller. It also loops data from the

DSU/CSU back to the DSU/CSU. If the DSU/CSU is capable of sending a test pattern, it can be used with this loopback to verify integrity of the 4-wire DDS loop.

To deactivate the Loopback, OFF must be selected under the 1.1 OCU DP submenu.

16 61200.068L1-1C November 1996

November 1996 61200.068L1-1C 17

APPENDIX I

OCU DP FAILURE MESSAGES

FAILURE MESSAGES

AT POWER-UP

The following messages indicate a probable part failure on the OCU DP Module.

EPROM

SRAM

EPROM ERROR

Static RAM ERROR

OCU DP ALARM

MESSAGES

The following message indicates an alarm condition on the OCU DP Module.

OPEN LOOP

not able to detect sealing current flowing. DSU/CSU not connected or incorrect wiring.

18 61200.068L1-1C November 1996

November 1996 61200.068L1-1C 19

Index

A

active status information 11

C

Configuration.

See PORT CONFIG

Customer Service 7

D

data ports.

See Port Test default setting.

See Fact Restore

Description 1

Features 1

Functional 1

Physical 4

I

F

Fact Restore 13

Front Panel 10

Indicators/Buttons 10

Initialization 9

Installation 5

Figure, Installing Option Module 6

Placement of the OM 5

Power Connection 5

L

Loopbacks Diagram 16

M

Menu Operation 11

Menu Structure 10

Messages

Alarm Messages 18

Failure Messages 18

Modular Jack Pinout Connectors 8

20 61200.068L1-1C November 1996

O

OCU DP Menus 11

Operation Overview 10

Overview 1

Features 1

Functional Description 1

Interfaces 2

Specifications 2

P

Physical Description 4

PORT CONFIG 12

A/B SIGNL, soft/hardware algorithm 13

LTCHING LBACK, latching/Channel loopback 13

QUAL MON, quality monitor 12

RATE, data rate 12

SEC CHAN, secondary channel 12

TX LEVEL, Transmit Signal 13

ZCS, Zero Code Suppression 13

Port Test 15

PORT UTILITY 14

PORTS Status 11

Power-Up Testing 9

R

Return Material Authorization (RMA) 7

Run Self Test 15

S

self test 15 software.

See Port Utility

Specifications 2 status information, active 11

T

TSU 100 Main Menu 10

W

Warranty 7

Wiring 8

November 1996 61200.068L1-1C 21

22

Product Support Information

Presales Inquiries and Applications Support

Please contact your local distributor, ADTRAN

Applications Engineering, or ADTRAN Sales:

Applications Engineering (800) 615-1176

Sales (800) 827-0807

Post-Sale Support

Please contact your local distributor first. If your local distributor cannot help, please contact ADTRAN

Technical Support and have the unit serial number available.

Technical Support (800) 726-8663

Repair and Return

If ADTRAN Technical Support determines that a repair is needed, Technical Support will coordinate with the Return Material Authorization (RMA) department to issue an RMA number. For information regarding equipment currently in house or possible fees associated with repair, contact RMA directly at the following number:

RMA Department (205) 971-8722

Identify the RMA number clearly on the package

(below address), and return to the following address:

ADTRAN, Inc.

RMA Department

901 Explorer Boulevard

Huntsville, Alabama 35806-2807

RMA # _____________

61200.068L1-1C November 1996