Masterclock D232 User manual

Masterclock, Inc. Tel (US & CAN): 800-940-2248 - 636-724-3666 • Fax: [phone]
2484 W Clay St, St Charles, MO 63301 Email: [e-mail] • Web: www.masterclock.com
1

Masterclock, Inc. Tel (US & CAN): 800-940-2248 - 636-724-3666 • Fax: [phone]
2484 W Clay St, St Charles, MO 63301 Email: [email protected] • Web: www.masterclock.com
2
TABLE OF CONTENTS
Introduction ......................................................................... 3
Features ............................................................................... 4
Connectors ........................................................................... 5
Specifications........................................................................ 6
Care and Cleaning ................................................................ 7
Limited Warranty ................................................................ 8
Service Information.............................................................. 9
Health and Safety ............................................................... 10
Contact Information........................................................... 12
Thank you for purchasing a DA232
from Masterclock. Here you’ll find
instructions for unpacking and
installing your DA232, including
suggestions for proper care and
configuration.
We are here to help.
You can reach us using various
contact methods (phone, email, etc.)
found at our website:
www.masterclock.com.
Before calling, please attempt to find
the answer to your situation here.
You’ll find this user manual will
handle virtually all of your questions.
Disclaimer - The material in this
document is for information only and
subject to change without notice.
While reasonable efforts have been
made in the preparation of this
document to assure its accuracy,
Masterclock, Inc. assumes no liability
resulting from errors or omissions in
this document, or from the use of
the information contained herein.
Masterclock, Inc. reserves the right
to make changes or revisions in the
product design or the product
manual without reservation and
without obligation to notify any
person of such revisions and
changes.
The DA232 is designed to operate indoors
between 32˚ to 140°F (0˚ to 60˚C) with 0-90%
relative humidity, non-condensing.
The DA232 is not water- or moisture-proof.
Treat it as you would any other delicate
electronic device and do not expose it to
water, excessive heat or physical abuse.

Masterclock, Inc. Tel (US & CAN): 800-940-2248 - 636-724-3666 • Fax: [phone]
2484 W Clay St, St Charles, MO 63301 Email: [email protected] • Web: www.masterclock.com
3
INTRODUCTION
DA232
DISTRIBUTION AMPLIFIER
The DA232 is an RS-232C Isolation and Distribution Amplifier. The DA232 allows the incoming
signal to be distributed up to 16 outputs (8 outputs standard). The unit receives RS-232C and
buffers the signal so that each of the 16 outputs can drive a single “user” at a distance up to 50
feet (per output). All inputs and outputs are via rear mounted 9-pin D-sub connectors.
The two main purposes of the DA232 are to:
1. Improve the distribution capabilities of RS-232C, or,
2. Provide isolation between users of the RS-232C.
INSTALLATION & OPERATION
The basic installation of the DA232 is as simple as installing the DA232 into your rack mount setup
and applying power (this unit uses AC power), connecting RS-232C to the input of the DA232 and
connecting any of the outputs (up to 16) to the users (computers, voice loggers, etc.) of RS-232C.
CONNECTING POWER
Apply power by inserting the IEC 320-C5AC cord into an appropriate AC power source. The input
range of the DA232 is 110-220 VAC, 50/60 Hz.
PIN DESIGNATIONS
INPUT
OUTPUT 1
OUTPUTS 2-16
PIN
FUNCTION
PIN
FUNCTION
PIN
FUNCTION
1
NC
1
NC
1
NC
2
RS232 RxD
2
RS232 TxD
2
RS232 TxD
3
RS232 TxD
3
RS232 RxD
3
NC
4
NC
4
NC
4
NC
5
GROUND
5
GROUND
5
GROUND
6
NC
6
NC
6
NC
7
NC
7
NC
7
NC
8
NC
8
NC
8
NC
9
NC
9
NC
9
NC

Masterclock, Inc. Tel (US & CAN): 800-940-2248 - 636-724-3666 • Fax: [phone]
2484 W Clay St, St Charles, MO 63301 Email: [email protected] • Web: www.masterclock.com
4
FEATURES
FRONT PANEL
POWER: A single green LED indicates if AC power is present. The green LED is extinguished if
there is an AC power outage.
REAR PANEL
The rear-panel of the DA232 provides access to the AC power input, RS-232C input and RS-232C
outputs.
AC POWER: AC power is supplied to the unit via a 3-wire line cord.
RS-232C Input: A rear mounted 9-pin D-sub connector accepts the RS-232C
signal.
RS-232C Output: Up to sixteen mounted 9-pin D-sub connectors output the RS-232C
signal. Each “Buffered” signal is capable of driving a single user at
a distance of up to 50 feet.
ENCLOSURE
The DA232 is housed in a rack mount enclosure which measures 16.9” x 1.75” x 3.887”
(429.26mm x 44.45mm x 98.73mm) without rack ears. Steel chassis in rust resistant black powder
coat.

Masterclock, Inc. Tel (US & CAN): 800-940-2248 - 636-724-3666 • Fax: [phone]
2484 W Clay St, St Charles, MO 63301 Email: [email protected] • Web: www.masterclock.com
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FRONT VIEW
REAR VIEW
DB9
DA232 CONNECTORS
The list of accessories below is for illustrative purposes. Refer to your sales order for actual items
shipped.
DA232 (Below)
IEC 320-C5 AC Power cord (Right)
Above left: RS-232C
INPUT & OUTPUT 1: Bi-
directional
Above right: AC power –Insert the IEC
320-C5 AC power cord (included) into the
AC IN socket located on the back panel.
Power Indicator –Green LED
Above center (bottom row):
1-8 DB9 RS-232C connector
outputs standard
(Up to 16 output connector’s
- optional top row)
NOTE: Only Output 1 is bi-
directional

Masterclock, Inc. Tel (US & CAN): 800-940-2248 - 636-724-3666 • Fax: [phone]
2484 W Clay St, St Charles, MO 63301 Email: [email protected] • Web: www.masterclock.com
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SPECIFICATIONS
POWER REQUIREMENTS
AC (IEC Connector)
AC Input Voltage
................................................110-220 VAC, 50/60 Hz
AC Input Connector .........IEC 320-C5 input connector
AC power consumption ....................................... <5W
Protection ...........Built in fuse, output power limiting,
over voltage and short circuit protection.
OPERATING/STORAGE TEMPERATURE AND
HUMIDITY
Operating temperature ........32˚ to 140°F (0˚ to 60˚C)
Relative Humidity ............. 0 to 90%, non-condensing
Storage Temperature ..... -40° to 185°F (-40° to 85°C)
COMMUNICATIONS –I/O
DB9 male…...D-sub connector
PHYSICAL SIZE
16.9 X 1.75 X 3.887 (inches)
429.26 x 44.45 x 98.73 (mm)
(Without rack mount ears)
WEIGHT
2.49lbs (.95Kg)
There are no user serviceable parts inside the
DA232 digital time display. Please contact
Masterclock, Inc. if you require servicing or repair.
INPUTS - 1
Bi-directional
OUTPUTS 1-16
Output 1- Level transmits and receives (in
and out)
Outputs 2 -16 transmit only
2400 –115, 280 baud

Masterclock, Inc. Tel (US & CAN): 800-940-2248 - 636-724-3666 • Fax: [phone]
2484 W Clay St, St Charles, MO 63301 Email: [email protected] • Web: www.masterclock.com
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CARE AND CLEANING
Adherence to regular and proper cleaning procedures will preserve the appearance of your
device. Scratched or damaged surfaces caused by misuse, mishandling, improper storage, or
improper cleaning are not covered under the limited warranty.
A LIST OF "DON'TS"
Don't store the device without the protective plastic shipment bag.
Don't store or place the device face down on any surface.
Don't use abrasive or highly alkaline cleaners.
FOREIGN SUBSTANCE REMOVAL
The use of the following products should help remove foreign substances from your Masterclock
device:
Butyl Cellosolve (Removal of paints, marking pens, lipstick, etc.)
The use of adhesive tape or lint removal tools work well for lifting off old weathered paints.
Kerosene, naphtha, or petroleum spirits is generally effective to remove labels, stickers, etc.
When the solvent will not penetrate sticker material, apply heat (hair dryer) to soften the
adhesive and promote removal.
Gasoline should never be used.
JOB SITE PRECAUTIONS
We recommend that devices be removed from the wall and stored face up in their protective
shipment bags during painting and construction.
New construction and renovations frequently require that the job site be cleaned of any excess
mortar, paint, sealant, primers or other construction compounds. Only recommended cleaners
should be used to clean the polycarbonate lens. Contact with harsh solvents such as methyl ethyl
ketone (MEK) or muriatic acid can result in surface degradation and possible crazing of the
polycarbonate.

Masterclock, Inc. Tel (US & CAN): 800-940-2248 - 636-724-3666 • Fax: [phone]
2484 W Clay St, St Charles, MO 63301 Email: [email protected] • Web: www.masterclock.com
8
LIMITED WARRANTY
This Masterclock product warranty extends to the original purchaser.
Masterclock warrants this DA232 against defects in materials and workmanship for a period of
five years from the date of sale. If Masterclock receives notice of such defects during the warranty
period, Masterclock will, at its option, either repair or replace products that prove to be defective.
Should Masterclock be unable to repair or replace the product within a reasonable amount of
time, the customer's alternate remedy shall be a refund of the purchase price upon return of the
product to Masterclock. This warranty gives the customer specific legal rights. Other rights, which
vary from state to state or province to province, may be available.
EXCLUSIONS
The above warranty shall not apply to defects resulting from improper or inadequate
maintenance by the customer, customer-supplied software or interfacing, unauthorized
modification or misuse, operation outside of the environmental specifications for the product or
improper site preparation and maintenance (if applicable).
WARRANTY LIMITATIONS
MASTERCLOCK MAKES NO OTHER WARRANTY, EITHER EXPRESSED OR IMPLIED, WITH RESPECT TO
THIS PRODUCT. MASTERCLOCK SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
In any state or province which does not allow the foregoing disclaimer, any implied warranty of
merchantability or fitness for a particular purpose imposed by law in those states or provinces is
limited to the one-year duration of the written warranty.
EXCLUSIVE REMEDIES
THE REMEDIES PROVIDED HEREIN ARE THE CUSTOMER'S SOLE AND EXCLUSIVE REMEDIES. IN NO
EVENT SHALL MASTERCLOCK BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES, WHETHER BASED ON CONTRACT, TORT, OR ANY OTHER LEGAL
THEORY.
In any state or province that does not allow the foregoing exclusion or limitation of incidental or
consequential damages, the customer may have other remedies.
HARDWARE SERVICE
You may return your DA232 device to Masterclock for repair service. Please contact the factory
for RETURN AUTHORIZATION before returning the unit. Under the Limited Warranty, when you
return your device for service, Masterclock will pay for transportation cost if within one year of
the purchase date. For international returns, please contact the factory.

Masterclock, Inc. Tel (US & CAN): 800-940-2248 - 636-724-3666 • Fax: [phone]
2484 W Clay St, St Charles, MO 63301 Email: [email protected] • Web: www.masterclock.com
9
SERVICE INFORMATION
We sincerely hope that you never experience a problem with any Masterclock product. If you do
need service, contact Masterclock’s Technical Support team. A trained specialist will help you to
quickly determine the source of the problem. Many problems are easily resolved with a single
phone call or email. If it is necessary to return a unit to us, an RMA (Return Material
Authorization) number will be given to you.
Visit our website to download a current RMA request form.
http://www.masterclock.com/rma.php
Masterclock tracks the flow of returned material with our RMA system to ensure speedy service.
You must include this RMA number on the outside of the box so that your return can be
processed immediately.
RMA POLICY
Our RMA policy is straightforward and is based on several basic premises:
An item can be returned, subject to several basic requirements, under our 30-day
Satisfaction Guarantee.
If an item fails within the Warranty Period we will repair and pay for return if withing first
year of warranty.
If an item gives trouble beyond the warranty period and requires repair we will inspect,
repair and return the item to you for a reasonable charge for the work and the cost for
freight.
If you think an item or system is not working properly we expect you to read the
instruction manual, talk with our technical support department and make a reasonable
effort to resolve the issue.
If you return an item to us for repair and the item is found to work properly then we will
charge you an "Analysis and Inspection" charge plus the return freight.
Please supply us with as many details about the problem as you can. The information you provide
will be supplied to the repair department before your unit arrives. This helps us to provide you
with the best service, in the fastest manner.
We apologize for any inconvenience that the need for repair may cause you. We hope that our
rapid service meets your needs. If you have any suggestions to help us improve our service, please
give us a call. We appreciate your ideas and will respond to them.

Masterclock, Inc. Tel (US & CAN): 800-940-2248 - 636-724-3666 • Fax: [phone]
2484 W Clay St, St Charles, MO 63301 Email: [email protected] • Web: www.masterclock.com
10
HEALTH AND SAFETY
These devices generate, use and can radiate radio frequency energy and, if not installed and used
in accordance with the instructions, may cause harmful interference to radio communications.
There is no guarantee that interference will not occur in a particular installation. If this device
does cause harmful interference to radio or television reception, which can be determined by
removing power from the device, the user is encouraged to try to correct the interference by one
or more of the following measures:
1. Connect the devices AC power cord into an outlet on a different circuit than other devices.
2. Increase the physical distance between the DA232 digital time display and other devices.
3. Contact technical support.
This DA232 series has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules, along with the CE test. These limits are designed to provide
reasonable protection against harmful interference in a residential installation.
Only qualified persons are authorized to carry out maintenance on this device. Read this User’s
Manual carefully, and follow the correct procedure when setting up the device. Do not open your
Masterclock product or attempt to disassemble or modify it.
COPYRIGHT
© 2014 Masterclock, Inc. All rights reserved. No part
of this publication may be reproduced, stored in a
retrieval system, or transmitted in any form or by any
means, electronic, mechanical, photocopying,
recording or otherwise, without the prior written
consent of Masterclock, Inc.
TRADEMARKS
Microsoft is a registered trademark of Microsoft
Corporation. Other trademarks mentioned in this
manual are the property of their respective owners.
PRINTING
While optimized for onscreen viewing, the pages of
this manual are formatted for printing on 8.5” x 11”
and A4 sized paper, giving you the option to print the
entire manual or just a specific page or section.
Never insert any metallic object
into the devices case. Doing so
increases the risk of electrical
shock, short circuiting, fire or
personal injury.
Never expose this device to rain,
or use it near water or in damp
or wet conditions.
Never place objects containing
liquids on or near this device, as
they may spill into its openings
increasing the risk of electrical
shock, short circuiting, fire or
personal injury.