Spectracom 7535-001 User manual

7535-001
IRIG-B Distribution Amplifier
User Manual
95 Methodist Hill Drive
Rochester, NY 14623
Phone: US +1.585.321.5800
Fax: US +1.585.321.5219
www.spectracomcorp.com
Part Number 1162-5000-0050
Manual Revision A (2.0)
September 2006

Copyright © 2006 Spectracom Corporation. The contents of this publication may not be
reproduced in any form without the written permission of Spectracom Corporation. Printed in
USA.
Specifications subject to change or improvement without notice.
Spectracom, NetClock, Ageless, TimeGuard, TimeBurst, TimeTap, LineTap, MultiTap,
VersaTap, and Legally Traceable Time are Spectracom registered trademarks. All other
products are identified by trademarks of their respective companies or organizations. All rights
reserved.

SPECTRACOM LIMITED WARRANTY
LIMITED WARRANTY
Spectracom warrants each new product manufactured and sold by
it to be free from defects in software, material, workmanship, and
construction, except for batteries, fuses, or other material normally
consumed in operation that may be contained therein AND AS
NOTED BELOW, for five years after shipment to the original
purchaser (which period is referred to as the “warranty period”).
This warranty shall not apply if the product is used contrary to the
instructions in its manual or is otherwise subjected to misuse,
abnormal operations, accident, lightning or transient surge, repairs
or modifications not performed by Spectracom.
The GPS receiver is warranted for one year from date of
shipment and subject to the exceptions listed above. The
power adaptor, if supplied, is warranted for one year from date
of shipment and subject to the exceptions listed above.
THE ANALOG CLOCKS ARE WARRANTED FOR ONE YEAR
FROM DATE OF SHIPMENT AND SUBJECT TO THE EXCEPTIONS
LISTED ABOVE.
THE TIMECODE READER/GENERATORS ARE WARRANTED FOR
ONE YEAR FROM DATE OF SHIPMENT AND SUBJECT TO THE
EXCEPTIONS LISTED ABOVE.
The Rubidium oscillator, if supplied, is warranted for two years from
date of shipment and subject to the exceptions listed above.
All other items and pieces of equipment not specified above,
including the antenna unit, antenna surge suppressor and antenna
pre-amplifier are warranted for 5 years, subject to the exceptions
listed above.
WARRANTY CLAIMS
Spectracom’s obligation under this warranty is limited to in-factory
service and repair, at Spectracom’s option, of the product or the
component thereof, which is found to be defective. If in
Spectracom’s judgment the defective condition in a Spectracom
product is for a cause listed above for which Spectracom is not
responsible, Spectracom will make the repairs or replacement of
components and charge its then current price, which buyer agrees
to pay.
Spectracom shall not have any warranty obligations if the
procedure for warranty claims is not followed. Users must notify
Spectracom of the claim with full information as to the claimed
defect. Spectracom products shall not be returned unless a return
authorization number is issued by Spectracom.
Spectracom products must be returned with the description of the
claimed defect and identification of the individual to be contacted
if additional information is needed. Spectracom products must be
returned properly packed with transportation charges prepaid.
Shipping expense: Expenses incurred for shipping Spectracom
products to and from Spectracom (including international customs
fees) shall be paid for by the customer, with the following
exception. For customers located within the United States, any
product repaired by Spectracom under a “warranty repair” will be
shipped back to the customer at Spectracom’s expense unless
special/faster delivery is requested by customer.
Spectracom highly recommends that prior to returning equipment for
service work, our technical support department be contacted to
provide trouble shooting assistance while the equipment is still
installed. If equipment is returned without first contacting the support
department and “no problems are found” during the repair work,
an evaluation fee may be charged.
EXCEPT FOR THE LIMITED WARRANTY STATED ABOVE,
SPECTRACOM DISCLAIMS ALL WARRANTIES OF ANY KIND
WITH REGARD TO SPECTRACOM PRODUCTS OR OTHER
MATERIALS PROVIDED BY SPECTRACOM, INCLUDING
WITHOUT LIMITATION ANY IMPLIED WARRANTY OR
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Spectracom shall have no liability or responsibility to the original
customer or any other party with respect to any liability, loss, or
damage caused directly or indirectly by an Spectracom product,
material, or software sold or provided by Spectracom, replacement
parts or units, or services provided, including but not limited to any
interruption of service, excess charges resulting from malfunctions of
hardware or software, loss of business or anticipatory profits
resulting from the use or operation of the Spectracom product or
software, whatsoever or howsoever caused. In no event shall
Spectracom be liable for any direct, indirect, special or
consequential damages whether the claims are grounded in
contract, tort (including negligence), or strict liability.
EXTENDED WARRANTY COVERAGE
Extended warranties can be purchased for additional periods
beyond the standard five-year warranty. Contact Spectracom no
later than the last year of the standard five-year warranty for
extended coverage.
SPECTRACOM 95 Methodist Hill Drive Rochester, NY 14623
+1.585.321.5800 FAX: [phone] www.spectracomcorp.com [e-mail]

Spectracom Corporation 7535-001
IRIG-B Distribution Amplifier User Manual iii
Table of Contents
1INTRODUCTION ..................................................................................... 1-1
1.1 Inventory........................................................................................................................................1-2
1.2 Inspection and Support..................................................................................................................1-3
2SPECIFICATIONS..................................................................................... 2-1
2.1.1 Power............................................................................................................................................2-1
3DRIVER SUPPORT ................................................................................... 3-1
List of Figures
Figure 1-1: Spectracom IRIG-B Distribution Amplifier.................................................................................1-1
Figure 1-2: Inputs and Outputs...................................................................................................................1-2

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IRIG-B Distribution Amplifier User Manualiv

Spectracom Corporation 7353-001
IRIG-B Distribution Amplifier User Manual 1
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1Introduction
This manual provides comprehensive information on the specifications for and operation of the
Spectracom Model 7535-001 1x4 Quad IRIG-B Distribution Amplifier. The Model 7535-001 is a
1x4 Quad IRIG-B Distribution Amplifier. Each input differential channel is routed to four BNC
output connectors. Every output signal is buffered individually with a unity gain amplifier. This
architecture allows four IRIG-B loads to be connected to a single input channel.
Figure 1-1: Spectracom IRIG-B Distribution Amplifier
Front View
Rear View

7535-001 Spectracom Corporation
IRIG-B Distribution Amplifier User Manual1-2
Because each output is buffered, the
disruption of one output does not
affect the other outputs of the
channel, e.g., if Channel 2, Output 2
were shorted, Channel 2 on Outputs
1, 3 & 4 would not be effected.
Each signal channel accepts single-
ended or differential input signals.
Each output is single-ended and
buffered, capable of supplying up to
80mA current at full output. Outputs
are also short-circuit protected.
Spectracom can supply input and
output cables for your application.
Please contact us for information and
pricing. Contact information can be
found on the back cover of this
manual.
Figure 1-2: Inputs and Outputs
1.1 Inventory
Before installing the GPS Optic Isolator, please verify that all material ordered has been
received. If there is a discrepancy, please contact Spectracom Customer Service at US
585.321.5800.
Item Quantity Description
1 1 Operation & Maintenance Manual
2 1 7535-001 IRIG-B Distribution Amplifier
1
2
3
4
1
.
.
.
4
1
.
.
.
4
1
.
.
.
4
4
.
.
.
1
1
.
.
.
4
Outputs
Input

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IRIG-B Distribution Amplifier User Manual 1
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1.2 Inspection and Support
Unpack the equipment and inspect it for damage. If any equipment has been damaged in
transit, please contact Spectracom Customer Service at US 585.321.5800.
If any problems occur during installation and configuration of your Spectracom product, please
contact Spectracom Technical Support at US 585.321.5823 or US 585.321.5824.
CAUTION: Electronic equipment is sensitive to Electrostatic
Discharge (ESD). Observe all ESD precautions and
safeguards when handling the IRIG-B Distribution
Amplifier.
NOTE: If equipment is returned to Spectracom, it must be shipped in its original packing
material. Save all packaging material for this purpose.

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IRIG-B Distribution Amplifier User Manual1-4

Spectracom Corporation 7535-001
IRIG-B Distribution Amplifier User Manual 2
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2Specifications
•Meets IEEE Standard 1344-1995 for IRIG B
•1 to 6 volts peak-to-peak output with standard 1 kHz carrier
•Buffered signals good to minimum of 75 meters
•Nominal gain of 1.00 ± 0.01
•Separate channels with 4 buffered outputs each channel
•Each output short circuit protected- can’t affect other outputs
•BNC input and output connectors
•Packaged in 1U 19” rack 1.75” high by 10” deep
•No fans or cooling slots— closed to the environment
•115 VAC 60 Hz 16 Watts
2.1.1 Power
The power connector and power switch are on the rear. When power is on and correctly
connected, the power indicator is illuminated. If the indicator is not illuminated, disconnect the
power, ensure the correct power is available, and check the fuse. Power requirements are:
Input Voltage Frequency Fuse Power
100 – 120 VAC 50 – 60 Hz 0.5 A 250V 15 Watts maximum

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IRIG-B Distribution Amplifier User Manual2-2

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IRIG-B Distribution Amplifier User Manual 3
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3 Driver Support
Please contact your sales representative for information about Spectracom’s bus-level timing
board driver support for Windows, Linux, VxWorks, and a variety of other platforms. You may
also visit our website at www.spectracomcorp.com to download datasheets and manuals.

7535-001 Spectracom Corporation
IRIG-B Distribution Amplifier User Manual3-2

Spectracom Corporation
95 Methodist Hill Drive
Rochester, NY 14623
www.spectracomcorp.com
Phone: US +1.585.321.5800
Fax: US +1.585.321.5219