Paradyne Comsphere 3510 User manual

COMSPHERE
3500 SERIES
DATA SERVICE UNITS
MODELS 3510 & 3511
QUICK REFERENCE
Document No. 3510-A2-GL10-10

Copyright 1999 Paradyne Corporation.
All rights reserved.
Printed in U.S.A.
Notice
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FL 33773.
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revise this publication and to make changes from time to time in the contents hereof
without obligation of Paradyne Corporation to notify any person of such revision or
changes.
Changes and enhancements to the product and to the information herein will be
documented and issued as a new release to this manual.
Warranty, Sales, Service, and Training Information
Contact your local sales representative, service representative, or distributor directly for
any help needed. For additional information concerning warranty, sales, service, repair,
installation, documentation, training, distributor locations, or Paradyne worldwide office
locations, use one of the following methods:
Internet: Visit the Paradyne World Wide Web site at www.paradyne.com. (Be
sure to register your warranty there. Select
Service & Support → Warranty
Registration
.)
Telephone: Call our automated system to receive current information by fax or to
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496-15149
TM
1
COMSPHERE 3500 Series Data Service Units
Models 3510 & 3511
Quick Reference
Document Number 3510-A2-GL10-10
March 1999
Product Documentation on the World Wide Web
We provide complete product documentation online. This lets you search the
documentation for specific topics and print only what you need, reducing the waste of
surplus printing. It also helps us maintain competitive prices for our products.
Complete documentation for this product is available at www.paradyne.com.
Select
Library → Technical Manuals → Subrate Digital Access Devices .
Select the following document:
3510-A2-GN32
COMSPHERE 3500 Series Data Service Units,
Models 3510 and 3511, User’s Guide
To request a paper copy of a Paradyne document:
Within the U.S.A., call 1-800-PARADYNE (1-800-727-2396)
Outside the U.S.A., call 1-727-530-8623
Be sure to register your warranty at www.paradyne.com. Select Service & Support →
Warranty Registration .
Before you install the DSU, read the
Important Safety Instructions on page 18.
!HANDLING PRECAUTIONS FOR STATIC-SENSITIVE DEVICES
This product is designed to protect sensitive components from
damage due to electrostatic discharge (ESD) during normal
operation. When performing installation procedures,
however, take proper static control precautions to
prevent damage to equipment. If you are not sure
of the proper static control precautions, contact
your nearest sales or service representative.

2
Installation Procedures
This section provides instructions for installing standalone Model 3510 DSUs and
carrier-mounted Model 3511 DSUs. Refer to the appropriate section.
Model 3510 DSU Installation
Physical installation of the Model 3510 consists of unpacking the DSU and placing it in
its planned location. Electrical installation requires the following procedure.
Procedure
1. Coordinate the installation with the telephone company and affected digital network
user locations.
2. Configure the DSU to meet the requirements of the application (refer to
Hardware
Strapping
on page 8). Do not disable the faceplate switches now, or you will
not be able to test the DSU.
3. Find a suitable non-switched ac wall outlet capable of furnishing 90 to 132 Vac,
0.07 amps at 117 Vac. Label the circuit breaker that controls the outlet and be sure
it is set to ON.
4. At the rear panel of the DSU, insert the socket end of the power cable into the
POWER receptacle. Ensure that the connector is fully inserted. Connect the other
end to the ac outlet.
Indicators on the faceplate flash as the DSU performs an internal power-on
self-test. The green OK indicator then lights for about 20 seconds, then the red
OS/NS indicator flashes. If no indicators light, verify that the DSU is receiving
power.
NETWORK INTERFACE
POWER CONNECTOR 98-12304a
EIA-232-D/V.24
CONNECTOR
V.35 CONNECTOR
Model 3510 DSU, Rear Panel

3
5. Perform the Device Test as described in the
Operation section of the User’s Guide.
If the DSU fails this test, replace the DSU.
6. Connect the network interface.
The Model 3510 DSU’s rear panel contains a miniature universal service ordering
code (USOC) type RJ48S jack for connecting your DSU to the digital network.
Purchasers in the United States receive a modular telephone cable (D8W-87) with
each DSU, with identical connectors on both ends. Canadian purchasers must
order another cable (Feature Number 3000-B1-006) with a USOC-type RJ48S
connector on one end and a 6-pin connector on the other.
7. Connect the DSU to the digital network by inserting the 8-pin end of the cable into
the connector labeled LINE at the rear of the DSU.
Insert the other end of the cable into the modular jack provided by the telephone
company. Make sure the OK indicator shows green and the OS/NS indicator stops
flashing.
NOTE:
For LADS applications, the OK indicator will not come on and the OS/NS
indicator will flash until both DSUs are connected to the LADS circuit.
8. The DSU has an EIA-232-D/V.24 (ISO 2110) connector and a CCITT V.35
connector. EIA-232-D/V.24 is the factory default setting; Switch S3-6 on the CCA is
positioned toward the front (F). Equipment speeds above 19.2 kbps typically use
the V.35 interface.
To configure the DSU to use the V.35 interface, set Switch S3-6 on the CCA toward
the rear (R) during configuration. Refer to
Hardware Strapping on page 8 for
additional information.
NOTE:
For the V.35 connector, the recommended maximum distance between a DTE
and a DSU is nominally 1000 feet. For the EIA-232 connector, the effective
shunt capacitance of the circuit, measured at the DSU, including the
capacitance of the cable and the DTE, must not exceed 2500 picofarads, as
specified in EIA-232-D.
9. Insert the plug end of the DTE cord into the appropriate DATA TERMINAL
connector (EIA-232-D or V.35) at the back of the DSU. Connection of the DSU to
the DTE is a matter of selecting and installing the appropriate cable.
Connect the other end of the DTE cord to your DTE.
10. If the network line and remote-end DSU are installed and tested, do a Remote
Loopback – Test Pattern Test (Point-to-Point or Multipoint).
11. If the Front Panel test switches strap is to be disabled, do this now.
Installation of the standalone Model 3510 DSU is complete.

4
Model 3511 DSU Installation
This section includes the installation procedures for the Model 3511 DSU, which is
designed for installation in a COMSPHERE 3000 Series Carrier. Before installing the
DSU, verify that the carrier has been installed properly and is operational.
CAUTION:
Discharge any static electricity that may be present on your body by
touching a properly grounded object (e.g., cold water pipe, frame ground, or
data cabinet). Do not handle the circuit card unnecessarily.
The initial installation procedure for the Model 3511 DSU requires the installation of a
rear connector plate onto the rear of the COMSPHERE 3000 Series Carrier. After the
initial installation, the DSU can be installed and removed from the front of the carrier
without first disconnecting the DTE cables at the rear of the carrier.
P26 P25 P24 P23
P20 P19
J2 P22 J1 P21
NON-MODULAR DSUs MODEL 3511 DSU
REAR CONNECTOR PLATES
SCREW
SLOT
98-12302a
25-PIN
EIA-232-D
CONNECTORS
25-PIN V.35
CONNECTORS
Rear View of the COMSPHERE 3000 Series Carrier
NOTE:
When modular circuit cards are installed with non-modular cards in the same
carrier, modular circuit cards like the Model 3511 DSU must be installed on the left
side of the carrier.

5
Installing the Rear Connector Plate
To install a DSU and its rear connector plate for the first time:
Procedure
1. Configure the DSU to meet the requirements of the application (refer to Hardware
Strapping
on page 8). Do not disable the front panel switches at this time.
2. At the rear of the carrier, set the tab on the rear connector plate into one of the slots
on the carrier’s backplane. Make sure the rear connector plate uses the same slot
position intended for the DSU.
3. Loosely fasten the screw attached to the rear connector plate, allowing for slight
adjustment that may be needed when installing the DSU.
4. Using a Phillips screwdriver, loosen the screw holding the circuit pack lock that
secures the DSU’s latch, and rotate the lock to the open position. Open the latch.
Model 3511 DSU Installation and Circuit Pack Lock

6
5. At the front of the carrier, hold the DSU vertically with the latch on its faceplate in
the open position. Then, insert the circuit card into the top and bottom circuit card
guides for the slot that contains the rear connector plate.
6. Aligning the circuit card with the rear connector plate, slide the DSU into the slot
until the connectors seat firmly into the back of the carrier.
7. Press the faceplate latch to secure the DSU in the carrier, rotate the circuit pack
lock into the closed position, and tighten the screw.
If the carrier is powered, all indicators on the faceplate flash as the DSU performs
an internal power-on self-test. The green OK indicator then lights for about 20
seconds, then the red OS/NS flashes. If no indicators light, verify that the DSU is
receiving power.
8. Return to the rear of the carrier and tighten the rear connector plate screw.
9. At the rear of the carrier, connect the DTE interface cable onto the rear connector
plate.
If using an EIA-232-D interface cable, connect the EIA-232-D cable to the top DTE
connector on the rear connector plate.
Installation of the DSU and its rear connector plate is complete.
Connecting to a V.35 Interface
To connect a V.35 interface cable:
Procedure
1. Connect the 25-pin end of the V.35 adapter to the bottom DTE connector on the
rear connector plate. Tighten the thumbscrews on both sides of the connector.
2. Connect the 34-pin end of the V.35 adapter to the DTE’s V.35 interface cable.
Tighten the screws on both sides of the connector.
Installation of the V.35 interface cable is complete.
NOTE:
For the V.35 connector, the recommended maximum distance between a DTE and
a DSU is 1000 feet. For the EIA-232 connector, the effective shunt capacitance of
the circuit measured at the DSU, including the capacitance of the cable and the
DTE, must not exceed 2500 picofarads, as specified in EIA-232-D.

7
25-Pin Connector
V.35 Adapter
V.35 Cable
Thumbscrews
99-16298
Model 3511 DSU V.35 Adapter Installation
(Feature Number 3000-F1-510)
Connecting to the Digital Network
The installed DSU is connected to the digital network through the 50-pin connectors on
the rear of the carrier. These interfaces are specified in USOC RJ48T. Proper network
connection to the DDS facility or a network channel terminating equipment must be
made at the far end of the cable.
To ensure proper network connection to the DDS facility or to network channel
terminating equipment:
Procedure
1. If the network line and remote DSU are installed and tested, perform a Remote
Loopback – Test Pattern Test (Point-to-Point or Multipoint).
2. If the Front Panel test switches strap is to be disabled, slide the DSU slightly out of
the carrier, open Switch S3-1, then reseat the DSU into the carrier. Do this now.
3. Write circuit ID information in the area provided on the cover plate under the
appropriate slot number.
The Model 3511 DSU and rear connector plate installation procedure is completed.

8
Hardware Strapping
Both Model 3510 and 3511 DSUs can be configured for installation at the local or
remote end of a network by setting onboard straps. The straps also allow you to
configure either type of DSU (Model 3510 or 3511) as a LADS for connection to 4-wire
metallic circuits.
98-12303a
S1S3
S4
S2 S5
3510
Model 3510 DSU Strap Access