Patton 1206RC User Manual

USER
MANUAL

MODEL 1206RC

Synchronous X.21
Modem Eliminator:
Rack Mount Card

An ISO-9001

Certified Company

Part# 07M1206RC-C
Doc# 049061U,
Rev. D
Revised 1/22/08

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

1.0 WARRANTY INFORMATION

Patton Electronics warrants all Model 1206RC 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 1206RC 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 1206RC 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
1206RC does cause interference to radio or television reception, which
can be determined by turning the power off or removing the card, 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). In the event the
user detects intermittent or continuous product malfunction due to
nearby high power transmitting radio frequency equipment, the user is
strongly advised to take the following steps: use only data cables with
an external outer shield bonded to a metal or metalized connector; and,
configure the rear card as shown in section 3.4 of this manual.

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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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].

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 1206RC. Technical Service hours: 8AM to 5PM EST, Monday

through Friday.

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2.0 GENERAL INFORMATION

Thank you for your purchase of this Patton Electronics product.
This product has been thoroughly inspected by Patton’s qualified
technicians. 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]; [e-mail] or

http://www.patton.com.

2.1 FEATURES

• X.21 operation

• Synchronous data rates from 32 to 144 Kbps

• Host-to-host distances up to 300 feet

• Internal, external or receive loopback clocking

• All necessary data, clocking and control signals supported

• Front panel LEDs show TD and CD activity for each port

• Two UD-26 connectors on rear interface card

• Switchable 120V or 240V power supply

• Mounts in Patton’s 16-slot rack chassis and 2/4/8-slot Cluster Boxes

2.2 DESCRIPTION

The Patton Model 1206RC synchronous X.21 modem
eliminator rack card lets two synchronous X.21 hosts communicate

with each other in the same room for a fraction of the cost of a pair of
high speed modems. Supporting synchronous data rates of 32, 48, 56,
64, 72, 112, 128 and 144 Kbps, the Model 1206 can be configured for
internal, external or receive loopback clock. Maximum distance
between the connected hosts is 300 feet, and all necessary data,
clocking and control signals are supported.

The Model 1206RC is designed to mount in Patton’s 2U high, 16­slot rack chassis, as well as Patton’s 2/4/8-slot desktop Cluster Boxes.
This rack chassis and cluster boxes feature a switchable 120/240 VAC
power supply (optional 48 VDC) and hot swappable function/interface
cards mounted in a mid-plane architecture. Front panel LEDs show TD
and CD activity for both ports, as well as power. The rear interface card
has two UD-26 connectors for patching to the host devices.

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3.0 CONFIGURATION

This section describes the location and orientation of the Model

1206RC’s configuration switches and jumpers, and provides detailed
instructions for all possible settings.

The Model 1206RC uses a combination of DIP switches and

jumpers that allow configuration to an extremely wide range of
applications. Designed around a mid-plane architecture, the Model
1206RC incorporates both front and rear cards. Configuration of both
may be necessary. The switches/jumpers are accessible when the
cards are slid out of the rack chassis. Once configured, the Model
1206RC is designed to operate transparently, without need for frequent
re-configuration: just set it and forget it!

3.1 FUNCTION CARD CONFIGURATION

All switches and jumpers are located on the Model 1206RC’s PC

board. To access the PC board, loosen the two thumb screws on the
front panel and slide the card out of the chassis. As Figure 1 (below)
illustrates, the DIP switches are located on the “daughterboard” and the
jumpers are located on the main PC board.

3.1.1 FUNCTION CARD DIP SWITCH

The Model 1206RC has one four-position DIP switch mounted on

the daughterboard. Figure 2 (following page) shows the numbering of
the individual switches and their “ON/OFF” positions relative to the
daughterboard.

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Figure 1. Model 1206RC board, showing location of switches/jumpers

DIP Switches

Jumpers

S1 through S3: Data Rate Setting

Switches S1 through S3 are set in combination to determine the
synchronous data rate for the Model 1206RC. Switch S4 is not active.

S1

S2 S3 S4 Setting
Off Off Off N/A 32 kbps
On Off Off N/A 48 kbps
Off On Off N/A 56 kbps
On On Off N/A 64 kbps
Off Off On N/A 72 kbps
On Off On N/A 112 kbps
Off On On N/A 128 kbps
On On On N/A 144 kbps

3.3 FUNCTION CARD JUMPERS

The Model 1206RC has two ports (Port A and Port B), which must
be configured independently for clocking. As Figure 3 (below) shows,
each configuration jumper has three possible positions: strap covering
posts 1 & 2, strap covering posts 2 & 3, or strap removed altogether.
The detailed descriptions for jumpers JP4 and JP5 present all valid
strap positions.

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Figure 2. Model 1206RC DIP switch orientation on internal daughterboard.

Figure 3. Possible function card strap positions

On

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3
2
1

Top of Card

123

Front of Card

123 123