Patton electronic 2040 User Manual

USER
MANUAL

MODEL 2040 Series

V.35/RS-422 to HSSI
Interface Converter

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

Part# 07M2040-UM
Doc# 07720U2-001,
Rev. D
Revised 1/22/08

An ISO-9001

Certified Company

CERTIFIED

1.0 WARRANTY INFORMATION

Patton Electronics warrants all Model 2040 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 2040 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 2040 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 2040
does cause interference to radio or television reception, which can be
determined by disconnecting the Model 2040, 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).

1.2 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 nonwarranty 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], http://www.patton.com, or at

[e-mail].

NOTE: 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 2040. 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. It
has been thoroughly inspected and tested and is warranted for One
Year for parts and labor. If you have any questions about this product,
please call Patton Electronics Technical Support at [phone].

2.1 FEATURES

• Bi-directionally converts V.35 or RS-422 to HSSI.

• Supports synchronous data rates up to 10Mbps.

• Transparent to synchronous protocol.

• M/34 and HD-50 connectors with integral 6-foot (1.8m) cable.

• Four versions available:
Model 2040MC-MT: Connects V.35 (DTE) to HSSI (DCE)
Model 2040MT-MC: Connects V.35 (DCE) to HSSI (DTE)
Model 2040MC-MT-422: Connects RS-422 (DTE) to HSSI (DCE)
Model 2040MT-MC-422: Connects RS-422 (DCE) to HSSI (DTE)

• Internal synchronization circuit enables high speed connections

• Externally AC powered.

• Made in the U.S.A.

2.2 DESCRIPTION

The Model 2040 is a V.35/RS-422 to High Speed Serial Interface
(HSSI) converter. It allows a HSSI (HD-50) device to communicate bi­directionally with a V.35 or RS-422 device at synchronous data rates up
to 10Mbps. The Model 2040 supports all HSSI co-directional timing
patterns, 2 loopback modes (local and remote line), full duplex data
and control signals.

The Model 2040 is available in several versions: The Model
2040MT-MC lets a V.35 DCE device communicate with a HSSI DTE
device. The Model 2040MC-MT lets a V.35 DTE device communicate
with a HSSI DCE device. RS-422 to HSSI versions are also available.

All versions are equipped with a male M/34 connector on the
converter end, and a male HD-50 on the end of a 6-foot (1.8 m) cable.
Other connector genders and cable lengths are available on a custom
basis. Power is supplied to the Model 2040 by an external desktop AC
transformer.

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3.0 CONFIGURATION

The Model 2040 is easy to install and is ruggedly designed for
excellent reliability. The following instructions will help you set up and
install the Model 2040 properly.

To use the Patton Model 2040, you must first configure the unit for
your application. To do so, first open the case by inserting a flat head
screw driver into an open slot on either side of the case, as in Figure 1.

Twist the screw driver head slightly and the top half of the case will
separate from the lower half, as in Figure 2. You now have access to
the internal switches used to configure the unit.

After opening the case, please refer to the section that pertains to
your unit for configuration details:

Patton Model Number

Section

Model 2040MC-MT and 2040MC-MT-422 ................3.1

Model 2040MT-MC and 2040MT-MC-422 ................3.2

To close the case, fit the 2 halves together snugly and snap them
back in place.

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Figure 1: Using a Small Screw Driver to Open the Model 2040 Case

Figure 2: Using a Small Screw Driver to Open the Model 2040 Case

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3.1 CONFIGURATION SWITCHES (MODELS 2040MC-MT &
2040MC-MT-422)

The Models 2040MC-MT and 2040MC-MT-422 use a mini DIP

switch that may be used to configure the units to connect synchronous
V.35 or RS-422 DTE equipment to synchronous HSSI DCE equipment.
Each interface converter is factory configured as DCE on the V.35 or
RS-422 end, and DTE on the HSSI end. Therefore, the V.35 or RS-422
end “wants” to connect to DTE and the HSSI end “wants” to connect to
DCE.

Please follow the instructions in this section to configure the

internal DIP switches so that the unit will work properly in your
application. Figure 3 shows the position of Switch S1 on the top side of
the PC board.

Figure 4 shows the orientation of the switches on DIP Switch S1
with respect to ON/OFF positions. The default settings for DIP Switch
S1 are shown in Table 1 on page 6. Detailed descriptions of each

switch follow the table.

Figure 3. The Model 2040MC-MT Assembly Drawing

Figure 4. Close-up of DIP Switches Showing “ON” and “OFF” Positions

1234

ON

OFF

ON

Switch S1

1234

On

Off

Switches S1-1 and S1-2: Clock Source

The setting for Switches S1-1 and S1-2 determines the source of
the HSSI Terminal Timing (TT). With Switch S1-1 On and S1-2 Off, the
Model 2040MC-MT derives the HSSI Terminal Timing from the ST
signal provided by the HSSI DCE. With Switch S1-1 Off, and S1-2 On,
the V.35 (or RS-422) DTE provides TT to the HSSI DCE.

S1-1

S1-2 Description

Off Off Not a Valid Setting

Off On Terminal Timing Supplied by V.35 (RS-422)

DTE device

On Off Terminal Timing supplied by HSSI ST signal

On On Not a Valid Setting

Switches S1-3 and S1-4: Synchronization Method

Switches S1-3 and S1-4 allow the Model 2040 to compensate for
timing delays when transmitting HSSI data at high speeds (greater than

2.5 Mbps). At high bit rates, set Switch S1-3 On and Switch S1-4 Off.
In this setting, the V.35 or RS-422 data will be synchronized to the SD
timing signal before conversion to HSSI. At lower bit rates (less than

2.5 Mbps), set Switch S1-3 Off and S1-4 On. In this setting, the V.35
(or RS-422) data bypasses the synchronization circuit and is passed
straight through to the HSSI DCE.

S1-3

S1-4 Description

Off Off Not a Valid Setting

Off On Data Skips Sync Circuit

On Off Data passes through sync circuit.

On On Not a Valid Setting

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2040MC-MT DIP SWITCH SUMMARY TABLE

Position Function Factory Default

S1-1 Clock Source On

S1-2 Clock Source Off

S1-3 Sync Method Off

}

}

HSSI ST

Signal

Bypass

Sync Circuit

Tab le 1. DIP Switch S1 Default Settings for Model 2040MC-MT

3.2 CONFIGURATION SWITCHES (MODELS 2040MT-MC &
2040MT-MC-422)

The Models 2040MT-MC and 2040MT-MC-422 use a mini DIP

switch that may be used to configure the units to connect synchronous
V.35 or RS-422 DCE equipment to synchronous HSSI DTE equipment.
Each interface converter is factory configured as DTE on the V.35 or
RS-422 end, and DCE on the HSSI end. Therefore, the V.35 or RS­422 end “wants” to connect to DCE and the HSSI end “wants” to
connect to DTE.

Please follow the instructions in this section to configure the

internal DIP switches so that the unit will work properly in your
application. Figure 5 shows the position of Switch S1 on the top side of
the PC board.

Figure 6 shows the orientation of the Switches on DIP Switch S1
with respect to ON/OFF positions. The default settings for DIP switch
S1 are shown in the Table 2 on page 8. Detailed descriptions of each
switch follow the table.

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Figure 5. The Model 2040 MT-MC Assembly Drawing

Figure 6. Close-up of DIP Switches Showing “ON” and “OFF” Positions

1234

ON

OFF

ON

Switch S1

On

Off

1234