Patton electronics 2040 Series User Manual
USER
MANUAL
MODEL 2040 Series
V.35/RS-422 to HSSI
Interface Converter
SALES OFFICE
(301) 975-1000
TECHNICAL SUPPORT
(301) 975-1007
http://www.patton.com
Part# 07M2040-UM
Doc# 07720U2-001,
Rev. D
Revised 1/22/08
CERTIFIED
An ISO-9001
Certified Company
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 (301) 975-1007, http://www.patton.com, or at
support@patton.com.
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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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
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
}
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HSSI ST
Signal
Bypass
Sync Circuit
Tab le 1. DIP Switch S1 Default Settings for Model 2040MC-MT
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