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
OCU DP MODULE MODULE
November 1996 61200.068L1-1C i
ii 61200.068L1-1C November 1996
1. INTRODUCTION
1.1 OCU DP OVERVIEW
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 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.
OCU DP MODULE MODULE
The Office Channel Unit Dataport (OCU DP) is
The OCU DP is designed to fit in the option slot of
FEATURES
• 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)
November 1996 61200.068L1-1C 1
OCU DP OPTION
MODULE SPECIFICATIONS
• 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.
Loop Interface 4-wire (TX Pair and RX Pair)
Data Rate 2.4, 4.8, 9.6, 19.2, 38.4, 56 kbps
including secondary channel rates
and 64 kbps (clear channel)
Signal Format Bipolar, return-to-zero, 50% duty
cycle
TX Output ±1.5V peak ±10% for rates 2.4, 4.8,
Amplitude 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 re-
versal capability
2 61200.068L1-1C November 1996
Capacity One DS0 (user configurable)
OCU DP MODULE MODULE
Tests Power-on circuit test
CSU loopback initiation - (sealing
current reversal)
OCU loopback (loopback-
internal toward MUX) PRT/
LCL (bidirectional loopback)
Connector 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.
NX 56/64
OCU DP
Port X.1
DDS.
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
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 SHIPMENTS
INCLUDE
• The OCU DP Option Module
• The OCU DP Option Module User's Manual
CUSTOMER PROVIDES
• Cable for connection to DSU/CSU
2.2 INSTALLING THE
OPTION MODULE
OCU DP MODULE MODULE
Carefully inspect the OCU DP module for any
(To be inserted into main TSU 100 User's Manual)
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.
PLACEMENT 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
POWER CONNECTION
TSU 100
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
Option Module
Figure 2. Installing Option Module
6 61200.068L1-1C November 1996
2.3 WARRANTY AND
CUSTOMER SERVICE
OCU DP MODULE MODULE
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 NAME DESCRIPTION
1 TIPRX RECEIVE DATA FROM THE DSU
2 RING RX RECEIVE DATA FROM THE DSU
3, 4, 5, 6 UNUSED
7 TIPTX SEND DATA TOWARDS THE DSU
8 RINGTX SEND DATA TOWARDS THE DSU
8 61200.068L1-1C November 1996
2.5 POWER-UP TESTING
AND INITIALIZATION
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.
ration is successfully restored, it will be indicated by
the illumination of the green "OK" LED in the MODULE 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.
OCU DP MODULE MODULE
The OCU DP option module executes a self test
When the self testing is complete and the configu-
November 1996 61200.068L1-1C 9
3. OPERATION
3.1 OVERVIEW
TSU 100 using the same methods as described in the
user's manual.
3.2 FRONT PANEL
INDICATORS/BUTTONS
panel indicators and buttons in the user's manual.
3.3 MENU STRUCTURE
operate the same as menus for the TSU 100. The
menus are accessed by selecting 1.1 OCU DP under
the PORT menu items.
PORT selections shaded.
Menu Tree is a complete menu diagram.
The OCU DP module is controlled as part of the
Please refer to the description of the TSU 100 front
The OCU DP menus appear as a subset of and
Figure 3 shows the TSU 100 Main Menu with the
The TSU 100 User's Manual's appendix TSU 100
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
MAIN MENU
1)STATUS
2)CONFIG
3)UTIL
4)TEST
1)NETWORK (NI)
2)UNIT
3)MAP XCHNG
4)MAP IN USE
5)DS0 MAP A
6)DS0 MAP B
7)PORT CONFIG
1)NETWORK TESTS
2)RUN SELFTEST
3)PORT TEST
Figure 3. TSU 100 Main Menu
10 61200.068L1-1C November 1996
OCU DP MENUS
ARE ALL SUBMENUS
ated 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.
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
Use: the down scroll key to place the cursor on
Press: ENTER
Results: display of the first two submenu choices.
2)PORTS STATUS,
SUBMENU OF 1)STATUS
information about the OCU DP. There are three fields
that report information. The display of an asterisk (*)
indicates an item is active.
OCU DP MODULE MODULE
The OCU DP menus are accessed from and oper-
Each of the OCU DP sub menu items is discussed
the cursor on the first item.
the desired item
This menu item is used to display active status
*
OPEN IDLE ADIS
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
figuration 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 sub-
Use: the down scroll key to place the cursor on
Press: ENTER
Results: only the bottom line of the LCD changes
Use: the scroll keys to identify 1.1 OCU DP
To select
Press: ENTER
Results: the first of eight submenu items
The 7)PORT CONFIG menu item is used for con-
menu items with the cursor on 1)NETWORK
(NI)
7)PORT CONFIG
display
7)PORT CONFIG
PORT:1.1 OCU DP
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 Dis-
able 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.
12 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 hard-
ware 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
OCU DP MODULE MODULE
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
Operation
7)PORT UTILITY,
SUBMENU OF 3)UTIL
Operation
This menu item is used to restore the factory
default setting for all OCU DP option module parameters.
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.
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.
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)PORT UTILITY
PORT:1.1 OCU DP
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.
14 61200.068L1-1C November 1996
2)RUN SELF TEST,
SUBMENU OF 4)TEST
3)PORT TEST,
SUBMENU OF 4)TEST
Operation
OCU DP MODULE MODULE
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.
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.
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
)PORT TEST
PORT:1.1 OCU DP
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-
November 1996 61200.068L1-1C 15
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
T1
OCU DP
Network Interface
(NI)
(Controller)
PRT/LCL
OCU
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.
DSU/CSU
4-wire DDS
CSU
16 61200.068L1-1C November 1996
OCU DP MODULE MODULE
November 1996 61200.068L1-1C 17
FAILURE MESSAGES
AT POWER-UP
OCU DP ALARM
MESSAGES
APPENDIX I
OCU DP FAILURE MESSAGES
The following messages indicate a probable part
failure on the OCU DP Module.
EPROM - EPROM ERROR
SRAM - Static RAM ERROR
The following message indicates an alarm condi-
tion 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
OCU DP MODULE MODULE
November 1996 61200.068L1-1C 19
A
active status information 11
C
Index
Configuration.
Customer Service 7
See
PORT CONFIG
D
data ports.
default setting.
Description 1
Features 1
Functional 1
Physical 4
See
Port Test
See
Fact Restore
F
Fact Restore 13
Front Panel 10
I
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
OCU DP MODULE MODULE
R
Return Material Authorization (RMA) 7
Run Self Test 15
S
self test 15
software.
Specifications 2
status information, active 11
See
Port Utility
T
TSU 100 Main Menu 10
W
Warranty 7
Wiring 8
November 1996 61200.068L1-1C 21
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 # _____________
22 61200.068L1-1C November 1996
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