Patton 1110A User Manual

USER
MANUAL

MODEL 1110A

Asynchronous, Carrier
Controlled Fiber Optic
Modem

CERTIFIED

An ISO-9001

Certified Company

Part# 07M1110A-B
Doc# 018051UB
Revised 7/18/97

SALES OFFICE
[phone]
TECHNICAL SUPPORT
[phone]
http://www.patton.com

1.0 WARRANTY INFORMATION

Patton Electronics warrants all Model 1110A components to be
free from defects, and will—at our option—repair or replace the product
should it fail within one year from the first date of shipment.

This warranty is limited to defects in workmanship or materials, and
does not cover customer damage, abuse or unauthorized modification.
If this product fails or does not perform as warranted, your sole
recourse shall be repair or replacement as described above. Under no
condition shall Patton Electronics be liable for any damages incurred
by the use of this product. These damages include, but are not limited
to, the following: lost profits, lost savings and incidental or
consequential damages arising from the use of or inability to use this
product. Patton Electronics specifically disclaims all other warranties,
expressed or implied, and the installation or use of this product shall be
deemed an acceptance of these terms by the user.

1.1 RADIO AND TV INTERFERENCE

The Model 1110A generates and uses radio frequency energy, and
if not installed and used properly—that is, in strict accordance with the
manufacturer’s instructions—may cause interference to radio and
television reception. The Model 1110A has been tested and found to
comply with the limits for a Class A computing device in accordance
with the specifications in Subpart J of Part 15 of FCC rules, which are
designed to provide reasonable protection from such interference in a
commercial installation. However, there is no guarantee that
interference will not occur in a particular installation. If the Model 1110A
does cause interference to radio or television reception, which can be
determined by disconnecting the RS-232 interface, the user is
encouraged to try to correct the interference by one or more of the
following measures: moving the computing equipment away from the
receiver, re-orienting the receiving antenna and/or plugging the
receiving equipment into a different AC outlet (such that the computing
equipment and receiver are on different branches).

1.3 SERVICE

All warranty and non-warranty repairs must be returned freight
prepaid and insured to Patton Electronics. All returns must have a
Return Materials Authorization number on the outside of the shipping
container. This number may be obtained from Patton Electronics
Technical Service at [phone], at our web site at
http://www.patton.com, or at [e-mail].

Packages

received without an RMA number will not be accepted.

Patton Electronics’ technical staff is also available to answer any
questions that might arise concerning the installation or use of your
Model 1110A. Technical Service hours: 8AM to 5PM EST, Monday

through Friday.

1.2 CE NOTICE

The CE symbol on your Patton Electronics equipment indicates
that it is in compliance with the Electromagnetic Compatibility (EMC)
directive and the Low Voltage Directive (LVD) of the Union European
(EU). A Certificate of Compliance is available by contacting Technical
Support.

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2.0 GENERAL INFORMATION

3.0 CONFIGURATION

Thank you for your purchase of this Patton Electronics product.
This product has been thoroughly inspected and tested and is
warranted for One Year parts and labor. If any questions or problems
arise during installation or use of this product, please do not hesitate to
contact Patton Electronics Technical Support at [phone].

2.1 FEATURES

• Communicates over dual optical fibers

• Data rates to 19.2 Kbps

• Distances to 4 miles (6.44 km)

• Plugs directly into an RS-232 port

• Immune to RFI/EMI noise, ground loops and transient surges

• Easily accessible DCE/DTE switch

• DIP Switch-selectable carrier control

• Requires no AC power or batteries

• Two easy-to-read status indicators

• Fits into tight installation spaces

• Male or female DB-25 and SMA or ST connectors available

2.2 DESCRIPTION

The Patton Model 1110A miniature RS-232 fiber optic modem
brings fiber to the desktop. Communicating over dual optical fibers, the
Model 1110A supports data rates to 19.2 Kbps and distances to 4 miles
(6.44 km). The Model 1110A operates full or half duplex and plugs
directly into a workstation’s RS-232 port.

Like all fiber optic modems, the Model 1110A is inherently immune
to RFI/EMI noise, ground loops and transient surges. The carrier may
be switch selected as either “Continuously On” or “Controlled by RTS”,
while an easily accessible DCE/DTE switch eliminates the need for
cumbersome RS-232 crossover cables. Two easy-to-read LED
indicators monitor the status of carrier detect and fiber optic output.
Drawing all necessary power from the RS-232 interface, the Model
1110A requires no AC power or batteries to operate.

Measuring only 2.66” x 2.10” x .73”, the Model 1110A is able to fit
into tight installation spaces. A convenient pop-open/snap-shut ABS
plastic case allows easy access to configuration switches. On the
RS-232 side, the Model 1110A comes equipped with either a male or
female DB-25 connector; on the fiber side, it is available with a choice
of SMA or ST connectors.

The Model 1110A is simple to install and is ruggedly designed for
excellent reliability. This section describes how to configure the Model
1110A’s DCE/DTE switch and how to set the internal DIP switches.

3.1 CONFIGURATION SWITCHES

The Model 1110A uses a DTE/DCE switch and a 4 position internal
DIP switch that allow configuration to wide range of applications.
Figure 1, below, shows the position of the DIP switch and the DCE/DTE
switch on the top of the Model 1110A PC board.

DIP Switches

DCE/DTE

Switch

Figure 1. Model 1110A PC board, showing switch and strap locations

DTE

DCE

1234

ON

3.1 SETTING THE EXTERNAL DCE/DTE SWITCH

For your convenience, the Model 1110A has an externally
accessible DCE/DTE switch (see Figure 2, below). If the device
connected to the Model 1110A is a PC, terminal (or is wired like one),
set the switch to “DCE” (Default Setting). This causes the Model 1110A
to behave like Data Communications Equipment and transmit data on
pin 3. If the device connected to the Model 1110A is a modem or
multiplexer (or is wired like one), set the switch to “DTE”. This causes
the Model 1110A to behave like Data Terminal Equipment and transmit
data on pin 2.

DCE

DCE DTE

Figure 2 Externally accessible DCE/DTE switch

Default Setting = “DCE”

DTE

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