Patton electronics 1206RC User manual

USER
MANUAL
MODEL 1206RC
Synchronous X.21
Modem Eliminator:
Rack Mount Card
SALES OFFICE
[phone]
TECHNICAL SUPPORT
[phone]
http://www.patton.com
Part# 07M1206RC-C
Doc# 049061U,
Rev. D
Revised 1/22/08
Dear Valued Customer,
Thank you for purchasing Patton Electronics products! We do
appreciate your business. I trust that you find this user manual helpful.
We manufacture one of the widest selections of data communications
products in the world including CSU/DSU's, network termination units,
powered and self-powered short range modems, fiber optic modems, interface
converters, baluns, electronic data switches, data-line surge protectors,
multiplexers, transceivers, hubs, print servers and much more. We produce
these products at our Gaithersburg, MD, USA, facility, and can custom
manufacture products for your unique needs.
We would like to hear from you. Please contact us in any of the
following ways to tell us how you like this product and how we can meet your
product needs today and in the future.
Web: http://www.patton.com
Sales E-mail: [email protected]
Support E-mail: [email protected]
Phone - Sales [phone]
Phone - Support [phone]
Fax: [phone]
Mail: Patton Electronics Company
7622 Rickenbacker Drive
Gaithersburg, MD 20879 USA
We are committed to a quality product at a quality price. Patton
Electronics is ISO 9001 certified. We meet and exceed the highest standards in
the industry (CE, UL, etc.).
It is our business to serve you. If you are not satisfied with any
aspect of this product or the service provided from Patton Electronics or its
distributors, please let us know.
Thank you.
Burton A.Patton
Vice President
P.S. Please tell us where you purchased this product.
_________________________________________________________
_________________________________________________________
_________________________________________________________
_________________________________________________________
_________________________________________________________
An ISO-9001
Certified Company

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.
1
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.
2

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.
1
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.
2

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.
4
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]; [email protected] 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, 16-
slot 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.
3
Figure 1. Model 1206RC board, showing location of switches/jumpers
DIP Switches
Jumpers

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.
4
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]; [email protected] 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, 16-
slot 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.
3
Figure 1. Model 1206RC board, showing location of switches/jumpers
DIP Switches
Jumpers

Figure 4 (below) shows the location of jumpers JP4 and JP5 on the
Model 1206RC front card.
JP5: Clock Source (Port A)
The setting for jumper JP5 determines–with respect to Port A–
whether clocking is internal or external. Note: Only Port A may be set
for external clock.
JP5 (Port A) Setting
Position 1&2 External Clock
Position 2&3 Internal Clock (factory default)
Strap Removed Not a valid setting
JP4: Clock Source (Port B)
The setting for jumper JP4 determines–with respect to Port B–
whether clocking is internal or receive loopback. Note1: If Port B is set
for receive loopback clock, Port A must be set for external clock.
Note2: Port B may not be set for external clock.
JP4 (Port B) Setting
Position 1&2 Receive Loopback Clock
Position 2&3 Internal Clock (factory default)
Strap Removed Not a valid setting
6
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.
5
Figure 4. Jumper locations on Model 1206RC front card
JP4
JP5
Figure 2. Model 1206RC DIP switch orientation on internal daughterboard.
Figure 3. Possible function card strap positions
On
4
3
2
1
Top of Card
123
Front of Card
123 123

Figure 4 (below) shows the location of jumpers JP4 and JP5 on the
Model 1206RC front card.
JP5: Clock Source (Port A)
The setting for jumper JP5 determines–with respect to Port A–
whether clocking is internal or external. Note: Only Port A may be set
for external clock.
JP5 (Port A) Setting
Position 1&2 External Clock
Position 2&3 Internal Clock (factory default)
Strap Removed Not a valid setting
JP4: Clock Source (Port B)
The setting for jumper JP4 determines–with respect to Port B–
whether clocking is internal or receive loopback. Note1: If Port B is set
for receive loopback clock, Port A must be set for external clock.
Note2: Port B may not be set for external clock.
JP4 (Port B) Setting
Position 1&2 Receive Loopback Clock
Position 2&3 Internal Clock (factory default)
Strap Removed Not a valid setting
6
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.
5
Figure 4. Jumper locations on Model 1206RC front card
JP4
JP5
Figure 2. Model 1206RC DIP switch orientation on internal daughterboard.
Figure 3. Possible function card strap positions
On
4
3
2
1
Top of Card
123
Front of Card
123 123

4.0 INSTALLATION
This section describes the functions of the Model 1000R16 rack
chassis, tells how to install front and rear Model 1206RC cards into the
chassis, and provides diagrams for wiring the interface connections
correctly.
4.1 THE MODEL 1000R16 RACK CHASSIS
The Model 1000R16 Rack Chassis (Figure 6) has sixteen card
slots, plus its own power supply. Measuring only 3.5” high, the Model
1000R16 is designed to occupy only 2U in a 19” rack. Sturdy front
handles allow the Model 1000R16 to be extracted and transported
conveniently.
4.1.1 THE RACK POWER SUPPLY
The power supply included in the Model 1000R16 rack uses the
same mid-plane architecture as the modem cards. The front card of
the power supply slides in from the front, and the rear card slides in
from the rear. They plug into one another in the middle of the rack.
The front card is then secured by thumb screws and the rear card by
conventional metal screws.
8
3.4 REAR CARD CONFIGURATION
The rear interface card for the Model 1206RC is equipped with two
female UD-26 connectors: one for each DTE host port. This card has
one configuration jumper (JB4). Figure 5 (below) shows the location of
this jumper on the PC board.
SGND & FRGND (JB4)
In the connected position, this jumper links UD-26 pin 7 (Signal
Ground) and frame ground. In the open position, pin 1 is “lifted” from
frame ground.
JB4
Position 1&2 = SGND (UD-26 pin 7)
and FRGND Connected
Position 2&3 = SGND (UD-26 pin 7)
and FRGND Not Connected
7
Figure 6. Model 1000R16 Rack Chassis with power supply
WARNING! There are no user-serviceable parts in the
power supply section of the Model 1206RC. Voltage
setting changes and fuse replacement should only be
performed by qualified service personnel. Contact Patton
Electronics Technical support at [phone],
http://www.patton.com, or [email protected] for more
information.
JB4
(peg 1 toward
bottom of card,
peg 3 toward top
of card)
Figure 5. Rear card jumper location

4.0 INSTALLATION
This section describes the functions of the Model 1000R16 rack
chassis, tells how to install front and rear Model 1206RC cards into the
chassis, and provides diagrams for wiring the interface connections
correctly.
4.1 THE MODEL 1000R16 RACK CHASSIS
The Model 1000R16 Rack Chassis (Figure 6) has sixteen card
slots, plus its own power supply. Measuring only 3.5” high, the Model
1000R16 is designed to occupy only 2U in a 19” rack. Sturdy front
handles allow the Model 1000R16 to be extracted and transported
conveniently.
4.1.1 THE RACK POWER SUPPLY
The power supply included in the Model 1000R16 rack uses the
same mid-plane architecture as the modem cards. The front card of
the power supply slides in from the front, and the rear card slides in
from the rear. They plug into one another in the middle of the rack.
The front card is then secured by thumb screws and the rear card by
conventional metal screws.
8
3.4 REAR CARD CONFIGURATION
The rear interface card for the Model 1206RC is equipped with two
female UD-26 connectors: one for each DTE host port. This card has
one configuration jumper (JB4). Figure 5 (below) shows the location of
this jumper on the PC board.
SGND & FRGND (JB4)
In the connected position, this jumper links UD-26 pin 7 (Signal
Ground) and frame ground. In the open position, pin 1 is “lifted” from
frame ground.
JB4
Position 1&2 = SGND (UD-26 pin 7)
and FRGND Connected
Position 2&3 = SGND (UD-26 pin 7)
and FRGND Not Connected
7
Figure 6. Model 1000R16 Rack Chassis with power supply
WARNING! There are no user-serviceable parts in the
power supply section of the Model 1206RC. Voltage
setting changes and fuse replacement should only be
performed by qualified service personnel. Contact Patton
Electronics Technical support at [phone],
http://www.patton.com, or [email protected] for more
information.
JB4
(peg 1 toward
bottom of card,
peg 3 toward top
of card)
Figure 5. Rear card jumper location

4.3 HOST (DTE) CONNECTION
The Model 1206RC rear card has two UD-26 connectors, labeled
“A1” and “B1” (see figure 7, below). These correspond to host (DTE)
connection Port A and Port B, as discussed in Section 3.0.
To connect X.21 host (DTE) devices A and B to the Model 1206RC,
follow these instructions:
1. Configure the Model 1206RC for your specific application according
to the instructions in Section 3.0 of this manual.
2. Connect host devices A and B to the Model 1206RC using multipair
adapter cables (see Appendix B for a list of custom adapter cables
available from Patton Electronics). Observe the following
conditions when making connections :
a) Each multipair cable must not exceed 150 feet in length.
b) If external clock is used, the host (DTE) device supplying the
clock must be connected to Port A. The Model 1206RC
cannot receive an external clock on Port B (see Section 3.0
for configuration details).
c) If receive clock is used on Port B, Port A must supply an
external clock (see Section 3.0 for configuration details).
10
Switching the Power Supply On and Off
The power supply on/off switch is located on the front panel. When
plugged in and switched on, a red front panel LED will glow. Since the
Model 1000R16 is a “hot swappable” rack,
it is not necessary for any
cards to be installed before switching on the power supply
. The power
supply may be switched off at any time without harming the installed
cards.
NOTE: Please refer to the Model 1000RP Series User Manual
AC
and DC Rack Mount Power Supplie
s for fuse and power card
replacement information.
4.2 INSTALLING THE MODEL 1206RC INTO THE CHASSIS
The Model 1206RC is comprised of a front card and a rear card.
The two cards meet inside the rack chassis and plug into each other by
way of mating 50 pin card edge connectors. Use the following steps as
a guideline for installing each Model 1206RC into the rack chassis:
1. Slide the rear card into the back of the chassis along the metal
rails provided.
2. Secure the rear card using the metal screws provided.
3. Slide the card into the front of the chassis. It should meet the
rear card when it’s almost all the way into the chassis.
4. Push the front card
gently into the card-edge receptacle of the
rear card. It should “click” into place.
5. Secure the front card using the thumb screws.
NOTE: Since the Model 1000R16 chassis allows “hot swapping”
of cards, it is
not necessary to power down the rack when you install
or remove a Model 1206RC.
9
Figure 7. Model 1206RC rear interface card, showing connectors
A1 B1
Notice! Any terminal cable connected to the Model
1206RC must be shielded cable, and the outer shield must
be 360 degree bonded–at both ends–to a metal or
metalized backshell.

4.3 HOST (DTE) CONNECTION
The Model 1206RC rear card has two UD-26 connectors, labeled
“A1” and “B1” (see figure 7, below). These correspond to host (DTE)
connection Port A and Port B, as discussed in Section 3.0.
To connect X.21 host (DTE) devices A and B to the Model 1206RC,
follow these instructions:
1. Configure the Model 1206RC for your specific application according
to the instructions in Section 3.0 of this manual.
2. Connect host devices A and B to the Model 1206RC using multipair
adapter cables (see Appendix B for a list of custom adapter cables
available from Patton Electronics). Observe the following
conditions when making connections :
a) Each multipair cable must not exceed 150 feet in length.
b) If external clock is used, the host (DTE) device supplying the
clock must be connected to Port A. The Model 1206RC
cannot receive an external clock on Port B (see Section 3.0
for configuration details).
c) If receive clock is used on Port B, Port A must supply an
external clock (see Section 3.0 for configuration details).
10
Switching the Power Supply On and Off
The power supply on/off switch is located on the front panel. When
plugged in and switched on, a red front panel LED will glow. Since the
Model 1000R16 is a “hot swappable” rack,
it is not necessary for any
cards to be installed before switching on the power supply
. The power
supply may be switched off at any time without harming the installed
cards.
NOTE: Please refer to the Model 1000RP Series User Manual
AC
and DC Rack Mount Power Supplie
s for fuse and power card
replacement information.
4.2 INSTALLING THE MODEL 1206RC INTO THE CHASSIS
The Model 1206RC is comprised of a front card and a rear card.
The two cards meet inside the rack chassis and plug into each other by
way of mating 50 pin card edge connectors. Use the following steps as
a guideline for installing each Model 1206RC into the rack chassis:
1. Slide the rear card into the back of the chassis along the metal
rails provided.
2. Secure the rear card using the metal screws provided.
3. Slide the card into the front of the chassis. It should meet the
rear card when it’s almost all the way into the chassis.
4. Push the front card
gently into the card-edge receptacle of the
rear card. It should “click” into place.
5. Secure the front card using the thumb screws.
NOTE: Since the Model 1000R16 chassis allows “hot swapping”
of cards, it is
not necessary to power down the rack when you install
or remove a Model 1206RC.
9
Figure 7. Model 1206RC rear interface card, showing connectors
A1 B1
Notice! Any terminal cable connected to the Model
1206RC must be shielded cable, and the outer shield must
be 360 degree bonded–at both ends–to a metal or
metalized backshell.

5.2 POWER-UP
There is no power switch on the Model 1206RC: Power is
automatically applied to the 1206RC when its card-edge connector
makes contact with the chassis’ mid-plane socket, or when the chassis’
power supply is turned on.
Note: The 1206RC is a “hot swappable”
card—it will not be damaged by plugging it in or removing it while the
rack is powered up.
When the Model 1206RC is powered up, and both ports are passing
data
normally , the following LED conditions will exist:
• PWR = green
• TD = blinking red and green
• CD = green
12
5.0 OPERATION
Once you have configured the Model 1206RC and connected the
cables to host A and host B, you are ready to operate the unit. This
section describes the LED status monitors and power-up procedure.
5.1 LED STATUS MONITORS
The Model 1206RC features 9 front panel status LEDs that indicate
the condition of the Model 1206RC and the two ports, A & B (see
Figure 9, above):
• The green “PWR” LED glows when power is applied to the Model
1206RC through its mid-plane chassis connection.
• Two “TD” LEDs monitor the status of each port’s data transmission.
The red LED glows when the signal is in an idle (negative) state.
The green LED glows when the signal is in a transmitting (positive)
state. Both LEDs will normally blink when data transmission is
occurring.
• Two “CD” LEDs monitor the status of each port’s carrier detect
signal. The red LED glows when the receive channel is not active
(negative condition). The green LED glows when the receive
channel is active (positive condition).
11
Figure 9. Model 1206RC front panel, showing LED indicators.

5.2 POWER-UP
There is no power switch on the Model 1206RC: Power is
automatically applied to the 1206RC when its card-edge connector
makes contact with the chassis’ mid-plane socket, or when the chassis’
power supply is turned on.
Note: The 1206RC is a “hot swappable”
card—it will not be damaged by plugging it in or removing it while the
rack is powered up.
When the Model 1206RC is powered up, and both ports are passing
data
normally , the following LED conditions will exist:
• PWR = green
• TD = blinking red and green
• CD = green
12
5.0 OPERATION
Once you have configured the Model 1206RC and connected the
cables to host A and host B, you are ready to operate the unit. This
section describes the LED status monitors and power-up procedure.
5.1 LED STATUS MONITORS
The Model 1206RC features 9 front panel status LEDs that indicate
the condition of the Model 1206RC and the two ports, A & B (see
Figure 9, above):
• The green “PWR” LED glows when power is applied to the Model
1206RC through its mid-plane chassis connection.
• Two “TD” LEDs monitor the status of each port’s data transmission.
The red LED glows when the signal is in an idle (negative) state.
The green LED glows when the signal is in a transmitting (positive)
state. Both LEDs will normally blink when data transmission is
occurring.
• Two “CD” LEDs monitor the status of each port’s carrier detect
signal. The red LED glows when the receive channel is not active
(negative condition). The green LED glows when the receive
channel is active (positive condition).
11
Figure 9. Model 1206RC front panel, showing LED indicators.

APPENDIX B
FACTORY REPLACEMENT PARTS
The Patton Model 1206RC rack system features interchangeable
rear cards, power cords for international various operating
environments and other user-replaceable parts. Model numbers,
descriptions and prices for these parts are listed below:
Patton Model # Description
1000RPEM..........................120/240V Rear Power Entry Module
1000RPSM-2.......................120/240V Front Power Supply Module
1000RPEM-DC ...................DC Rear Power Entry Module
1000RPSM-48A ..................48V Front Power Supply Module
1000RPEM-V ......................120/240V CE Compliant Rear Power
Entry Module
1000RPSM-V ......................120/240V CE Compliant Front Power
Supply Module
0805US ...............................American Power Cord
0805EUR.............................European Power Cord CEE 7
0805UK ...............................United Kingdom Power Cord
0805AUS.............................Australia/New Zealand Power Cord
0805DEN.............................Denmark Power Cord
0805FR ...............................France/Belgium Power Cord
0805IN.................................India Power Cord
0805IS.................................Israel Power Cord
0805JAP..............................Japan Power Cord
0805SW ..............................Switzerland Power Cord
0516FPB1 ...........................Single Width Blank Front Panel
0516FPB4 ...........................4-Wide Blank Front Panel
0516RPB1...........................Single Width Blank Rear Panel
0516RPB4...........................4-Wide Blank Rear Panel
056S1..................................Set of 16 #4 pan head screws/washers
1206-26M/15M....................cable, 6ft, UD-26 male to DB-15 male
1206-26M/15F.....................cable, 6ft, UD-26 male to DB-15 female
14
APPENDIX A
PATTON MODEL 1206RC SPECIFICATIONS
Transmission Format: Synchronous, ITU/CCITT X.21
Internal Interface: Connection to Model 1000R16 rack
chassis via male card edge
External Interface: UD-26 female, ports A1 and B1
Data Rates: 32, 48, 56, 64, 72, 112, 128 and 144 Kbps
Clocking: Internal, external or receive loopback
Distance: 300 feet (DTE to DTE)
Indicators: Independent Bi-color LED indicators for
each port: TD and CD; common “Power”
indicator
Power Supply: Rack-mount power supply is switchable
between 120V and 240V AC; chassis
supplies 10V AC to the Model 1206RC,
typical consumption is 700mW
Temperature: 0-50°C / 32-122°F
Humidity: 5 to 95%, noncondensing
Dimensions: 0.95”w x 3.1”h x 5.4”l
13

APPENDIX B
FACTORY REPLACEMENT PARTS
The Patton Model 1206RC rack system features interchangeable
rear cards, power cords for international various operating
environments and other user-replaceable parts. Model numbers,
descriptions and prices for these parts are listed below:
Patton Model # Description
1000RPEM..........................120/240V Rear Power Entry Module
1000RPSM-2.......................120/240V Front Power Supply Module
1000RPEM-DC ...................DC Rear Power Entry Module
1000RPSM-48A ..................48V Front Power Supply Module
1000RPEM-V ......................120/240V CE Compliant Rear Power
Entry Module
1000RPSM-V ......................120/240V CE Compliant Front Power
Supply Module
0805US ...............................American Power Cord
0805EUR.............................European Power Cord CEE 7
0805UK ...............................United Kingdom Power Cord
0805AUS.............................Australia/New Zealand Power Cord
0805DEN.............................Denmark Power Cord
0805FR ...............................France/Belgium Power Cord
0805IN.................................India Power Cord
0805IS.................................Israel Power Cord
0805JAP..............................Japan Power Cord
0805SW ..............................Switzerland Power Cord
0516FPB1 ...........................Single Width Blank Front Panel
0516FPB4 ...........................4-Wide Blank Front Panel
0516RPB1...........................Single Width Blank Rear Panel
0516RPB4...........................4-Wide Blank Rear Panel
056S1..................................Set of 16 #4 pan head screws/washers
1206-26M/15M....................cable, 6ft, UD-26 male to DB-15 male
1206-26M/15F.....................cable, 6ft, UD-26 male to DB-15 female
14
APPENDIX A
PATTON MODEL 1206RC SPECIFICATIONS
Transmission Format: Synchronous, ITU/CCITT X.21
Internal Interface: Connection to Model 1000R16 rack
chassis via male card edge
External Interface: UD-26 female, ports A1 and B1
Data Rates: 32, 48, 56, 64, 72, 112, 128 and 144 Kbps
Clocking: Internal, external or receive loopback
Distance: 300 feet (DTE to DTE)
Indicators: Independent Bi-color LED indicators for
each port: TD and CD; common “Power”
indicator
Power Supply: Rack-mount power supply is switchable
between 120V and 240V AC; chassis
supplies 10V AC to the Model 1206RC,
typical consumption is 700mW
Temperature: 0-50°C / 32-122°F
Humidity: 5 to 95%, noncondensing
Dimensions: 0.95”w x 3.1”h x 5.4”l
13

APPENDIX C
PATTON MODEL 1206RC INTERFACE STANDARDS
© Copyright
Patton Electronics Company
All Rights Reserved
13- Not Used
12- (TC/) Transmit Clock
11- (XTC/) Network Clock
10- (CD/) Carrier Detect
9- (RC/) Receive Clock
8- (CD) Carrier Detect
7- (SG) Signal Ground
6- Not Used
5- Not Used
4- (RTS) Request to Send
3- (RD) Receive Data
2- (TD) Transmit Data
1- (FG) Frame Ground
MODEL 1206RC X.21 INTERFACE (DCE WIRING)
Not Used -26
Not Used -25
Network Clock (XTC) -24
Not Used -23
Not Used -22
Not Used -21
Not Used -20
Request to Send (RTS/) -19
Not Used -18
Receive Clock (RC) -17
Receive Data (RD/) -16
Transmit Clock (TC) -15
Transmit Data (TD/) -14
15
Notes
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APPENDIX C
PATTON MODEL 1206RC INTERFACE STANDARDS
© Copyright
Patton Electronics Company
All Rights Reserved
13- Not Used
12- (TC/) Transmit Clock
11- (XTC/) Network Clock
10- (CD/) Carrier Detect
9- (RC/) Receive Clock
8- (CD) Carrier Detect
7- (SG) Signal Ground
6- Not Used
5- Not Used
4- (RTS) Request to Send
3- (RD) Receive Data
2- (TD) Transmit Data
1- (FG) Frame Ground
MODEL 1206RC X.21 INTERFACE (DCE WIRING)
Not Used -26
Not Used -25
Network Clock (XTC) -24
Not Used -23
Not Used -22
Not Used -21
Not Used -20
Request to Send (RTS/) -19
Not Used -18
Receive Clock (RC) -17
Receive Data (RD/) -16
Transmit Clock (TC) -15
Transmit Data (TD/) -14
15
Notes
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USER
MANUAL
MODEL 503S
Serial Surge Protector
SALES OFFICE
[phone]
TECHNICAL SUPPORT
[phone]
http://www.patton.com
Part# 07M503S-D
Doc# 074201UD,
Rev. E
Revised 1/21/08
CERTIFIED
An ISO-9001
Certified Company
Dear Valued Customer,
Thank you for purchasing Patton Electronics products! We do
appreciate your business. I trust that you find this user manual helpful.
We manufacture one of the widest selections of data communications
products in the world including CSU/DSU's, network termination units,
powered and self-powered short range modems, fiber optic modems, interface
converters, baluns, electronic data switches, data-line surge protectors,
multiplexers, transceivers, hubs, print servers and much more. We produce
these products at our Gaithersburg, MD, USA, facility, and can custom
manufacture products for your unique needs.
We would like to hear from you. Please contact us in any of the
following ways to tell us how you like this product and how we can meet your
product needs today and in the future.
Web: http://www.patton.com
Sales E-mail: [email protected]
Support E-mail: [email protected]
Phone - Sales [phone]
Phone - Support [phone]
Fax: [phone]
Mail: Patton Electronics Company
7622 Rickenbacker Drive
Gaithersburg, MD 20879 USA
We are committed to a quality product at a quality price. Patton
Electronics is ISO 9001 certified. We meet and exceed the highest standards
in the industry (CE, UL, etc.).
It is our business to serve you. If you are not satisfied with any
aspect of this product or the service provided from Patton Electronics or its
distributors, please let us know.
Thank you.
Burton A.Patton
Vice President
P.S. Please tell us where you purchased this product:
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