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.

1

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.

2

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.

3

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.

4

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

5

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

6

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.

7

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

Switches S1-1 and S1-2: Gapped Clock

Switches S1-1 and S1-2 allow the Model 2040MT-MC to generate
a HSSI gapped clock. Gapped clocking is a method of flow control in
which data flow is interrupted by an idle (gapped) clock signal. In this
mode, the Model 2040MT-MC will gap the ST clock to the HSSI DTE
whenever the V.35 (or RS-422) CTS signal is de-asserted. In the ‘No
Gapped Clock’ setting, the V.35 clock passes through with only a level
change.

S1-1

S1-2 Description

Off Off Not a Valid Setting

Off On Gapped Clock

On Off No Gapped Clock

On On Not a Valid Setting

Switches S1-3 and S1-4: Synchronization Method

Switches S1-3 and S1-4 allow the Model 2040MT-MC 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 signals
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 DTE.

S1-3

S1-4 Description

Off Off Not a Valid Setting

Off On Data Skips Sync Circuit

On Off Data passes through sync circuit.

8

2040MT-MC DIP SWITCH SUMMARY TABLE

Position Function Factory Default

S1-1 Gapped Clock On

S1-2 Gapped Clock Off

S1-3 Sync Method Off

}

}

No Gapped

Clock

Bypass

Sync Circuit

Tab le 2. DIP Switch S1 Default Settings for Model 2040MT-MC

Off Off Not a Valid Setting

9

Figure 7. A Common V.35/RS-422 DTE to HSSI DCE Installation

Figure 8. A Common HSSI DTE to V.35/RS-422 DCE Installation

Router with HSSI

Interface

(DTE)

T1/T3 DSU with

V.35 Interface

(DCE)

Model 2040

T1/E1 CSU/DSU with

HSSI Interface

(DCE)

T1/E1 Router with

V.35 Interface

(DTE)

4.0 INSTALLATION

The Model 2040 is designed to connect V.35 or RS-422 devices to
devices which employ the HSSI interface standard. This section
describes how to install the units.

4.1

2040MC-MT CONNECTION

The Model 2040MC-MT is designed to connect a V.35 or RS-422*
DTE device to an HSSI DCE device. In this application, the M/34 (V.35)
and HD-50 (HSSI) male connectors of the Model 2040MC-MT may
connect directly to their respective equipment ports, or they may
connect via a short “straight-through” cable (See Appendix C for
Interface Pin Assignments). Figure 7 below illustrates the proper
connection of the Model 2040MC-MT.

4.2 2040MT-MC CONNECTION

The Model 2040MT-MC is designed to connect a V.35 or RS-422*
DCE device to an HSSI DTE device. In this application, the M/34 (V.35)
and HD-50 (HSSI) male connectors of the Model 2040MT-MC may
connect directly to their respective equipment ports, or they may
connect via a short “straight-through” cable (See Appendix C for
Interface Pin Assignments). Figure 8 below illustrates the proper
connection of the Model 2040MT-MC.

*NOTE: The RS-422 versions of Model 2040 use an M/34
connector. Please refer to Appendix D to construct your own
cross-connect cable if your RS-422 device uses the RS-530 (DB-

25) or RS-449 (DB-37) physical interface. You may also purchase
cross-connect cables from Patton Electronics.

10

To Power

Supply Jack

Barrel power connector

S/N: G01234567890

MADE IN CHINA BY SUNNY

MODEL : SYD1106-0505

INPUT : 36-60V 0.2A MAX

OUTPUT : +5V 1.0A

OUTPUT POWER : 5W MAX

SWITCHING POWER SUPPLY

-Vin

+Vin

To -48VDC

Source

Black lead (-V)

Red lead (+V)

4.3 AC POWER CONNECTION

The Model 2040 uses a 5VDC, 2A universal input, power supply
that is equipped with a male IEC-320 power entry connector and
supports a voltage range of 100-240VAC. This transformer connects
to the Model 2040 by means of a cannon jack on the rear panel. There
are a variety of domestic and international power cords available for the
power entry (See Appendix B). The Model 2040 is powered-up as soon
as it is plugged into an AC outlet–there is no power switch.

4.4 DC POWER CONNECTION

The 36-60 VDC DC to DC adapter is supplied with the DC version

of the Model 2040. The black and red leads plug into a DC source
(nominal 48VDC) and the barrel power connector plugs into the barrel
power supply jack on the 2040.

11

Figure 9. Model 2040 Rear Panel

External Power Jack

HSSI Cable

Status LED

Test Mode LED

5.0 OPERATION

Once you have configured the Model 2040 properly (see Section

3.0) and have correctly connected DTE, DCE and power (see Section

4.0), you are ready to operate the unit. This section describes the LED
status monitors and loopback test modes.

5.1 BACK PANEL LED STATUS MONITORS

The Model 2040 features two LEDs that are located on the back
panel. Figure 9 below shows the positions of the LEDs. Following
Figure 9 is a description of each LED.

Status Glows green to indicate that both DTR (from the DTE

device) and DSR (from the DCE device) are active.
This LED will not

be illuminated whenever one of the

two signals are inactive.

Test Mode Glows red to indicate that either one or both of the test

modes are active (See Section 5.2 for a description of
the test modes).

5.2 TEST MODES

The Model 2040 supports two loopback modes that may be used
to evaluate the condition of the communication links. These modes,
(Local Loopback (LL) and Remote Loopback (RL), are always initiated
by the signals on the DTE device (See Figure 10). This section
describes both loopback modes.

NOTE: HSSI supports a third loopback mode: Local Digital

Loopback (LDL). However, V.35 does not support this mode. In

order to use LDL, the V.35 device must be programmed to respond

according the the HSSI specification for LDL (See TIA/EIA-613,

Section 6.2.1 Local Digital Loopback (Loop A)).

12

Figure 10. Local Loopback and Remote Loopback Modes

DCE

DCE

DTE

Model 2040MC-MT

RL

LL

5.2.1 Local Loopback (LL)

The Local Loopback (LL) test checks the performance of the link
between the DTE device and the DCE. Any data sent to the Model
2040 from the DTE in this test mode will be sent to the local DCE and
will then be echoed (returned) back to the DTE (the Model 2040 simply
converts and passes the data to the the local DCE, which must perform
the loopback). To perform a LL test, follow these steps:

A. Verify that the data terminal equipment is operating properly

and can be used for a test. If a fault is indicated, call a technician

or replace the unit.

B. Activate LL from the DTE device. This may be done either by

raising pin L (if the V.35/RS-422 device is DTE), or by activating

Local Loopback from the HSSI Interface (if the HSSI device is the

DTE). The “test” LED should be lit.

C. Perform a BER (bit error rate) test from the DTE. If the test

indicates no fault, deactivate LL and proceed as normal.

13 14

5.2.2 Remote Digital Loopback (RL)

The Remote Loopback (RL) test checks the performance of the link
between the DTE device and the DCE as well as the link between the
local and remote DCE devices. Any characters sent from the DTE in
this test mode will be sent to the local DCE, which will send the data to
the remote DCE. The remote DCE should return the data back through
the entire communication link and finally, to the DTE. To perform a RL
test, follow these steps:

A. Activate RL from the DTE device. This may be done either by

raising pin N on the V.35 interface (if the V.35/RS-422 device is

DTE), or by activating Local Loopback from the HSSI interface (if

the HSSI device is the DTE). The “test” LED should be lit.

B. Perform a BER (bit error rate) test from the DTE.

C. If the BER test equipment indicates a fault, and the Local

Loopback test was successful, you may have a problem with the

cable between the DCE devices.

NOTE: The Model 2040 simply converts and passes the data

through the communication link. The DCEs must be configured to

perform to the appropriate loopback diagnostic.

APPENDIX A

MODEL 2040 SPECIFICATIONS

Data Format: Synchronous

Data Rate: 0 - 10Mbps

Clocking: All HSSI co-directional timing patterns are supported.

Standards: V.35 version converts ITU/CCITT V.35 or EIA-422 to

HSSI (ANSI/TIA/EIA-613 Dec. “93 and ANSI/TIA/EIA­612 NOV. “93) electrically and mechanically;

Loopbacks: Local and Remote

Interfaces: 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)

* RS-422 electrical signals are presented on a male
connector

Cable: 6 feet (1.8 m)

Connectors: Male HD/Slimline 50-pin (HSSI); Male M/34 (V.35)

Compliance: FCC Class A, IEC CE (emissions).

Power: Unit will require an external desk top power supply.

Temperature
Range: 0 to 50º C (32 - 122ºF)

Humidity: 5 to 95%, non-condensing

Size: 3.0”L x 1.8”W x 0.8”H (7.6 X 4.4 X 1.9 CM)

Approval: CE (EMC Directive/EN 50082-1)

15

APPENDIX B

PATTON MODEL 2040

FACTORY REPLACEMENT PARTS AND ACCESSORIES

Patton Model #

Description

08055DCUI......................100-240VAC (+5V ±5% reg. DC/2A)

Universal Input Adapter

0805EUR.........................European Power Cord CEE 7

0805UK ...........................United Kingdom Power Cord

0805US ...........................American 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

07M2040-B......................User Manual

16

APPENDIX C

Model 2040 HSSI Interface

HD-50 Connector (DCE or DTE)

Pin #

Signal

1 SGND (Signal Ground)
26 SGND (Signal Ground)
2 RT (Receive Timing-A)
27 RT/ (Receive Timing-B)
3 DSR/(DCE Ready-A)
28 DSR (DCE Ready-B)
4 RD (Receive Data-A)
29 RD/ (Receive Data-B)
5

Reserved for Future Use

30

Reserved for Future Use

6 ST (Send Timing - A, DCE Source)
31 ST/ (Send Timing-B, DCE Source)
7

Reserved for Future Use

32

Reserved for Future Use

8 DTR (DTE Ready-A)
33 DTR/ (DTE Ready-B)
9 TT (Terminal Timing-A, DTE Source)
34 TT/ (Terminal Timing-B, DTE Source)
10 LA (Loopback A-A)
35 LA/ (Loopback A-B)
11 SD (Send Data A)
36 SD/ (Send Data B)
12 LB (Loopback B-A)
37 LB/ (Loopback B-B)
13

Reserved for Future Use

38

Reserved for Future Use

14 - 18

Reserved for Future Use

39 - 43

Reserved for Future Use

19

Reserved for Future Use

44

Reserved for Future Use

20 - 23

Reserved for Future Use

45 - 48

Reserved for Future Use

24 TM - Test Mode (Indication-A)
49 TM/ - Test Mode (Indication-B)
25 SGND (Signal Ground)
50 SGND (Signal Ground)

17

APPENDIX C

Model 2040 V.35 or RS-422 Interface*

M/34 Connector (V.35 or RS-422 DCE or DTE)

Pin #

Signal

A FGND (Frame Ground)
B SGND (Signal Ground)
C RTS (Request to Send)
D CTS (Clear to Send)
E DSR (Data Set Ready)
F CD (Carrier Detect)
H DTR (Data Terminal Ready)
L LL (Local Loopback)
M TM (Test Mode)
N RL (Remote Loopback)
P TD (Transmit Data)
R RD (Receive Data)
S TD/ (Transmit Data-B)
T RD/ (Receive Data-B)
U TT (Terminal Timing-A)
V RT (Receive Timing-A)
W TT/ (Terminal Timing-B)
X RT/ (Receive Timing-B)
Y ST (Send Timing-A)
AA ST/ (Send Timing-B)

*NOTE: The RS-422 versions of Model 2040 also use an M/34
connector. Please refer to Appendix D to construct your own
cross-connect cable if your RS-422 device uses the RS-530 (DB-

25) or RS-449 (DB-37) physical interface. You may also purchase
cross-connect cables from Patton Electronics.

18

APPENDIX D

RS-422/RS-449 Interface

DB-37 Connector

Pin #

Signal

1 Shield
4TD
5TC
6RD
7RTS
8RC

9 CTS
11 DM (DSR)
12 TR (DTR)
13 RR (CD)
17 TT (XTC)
19 Signal Ground
20 Signal Ground
22 TD/
23 TC/
24 RD/
25 RTS/
26 RC/
27 CTS/
29 DM/ (DSR/)
30 TR/ (DTR/)
31 RR/ (CD/)
35 TT/ (XTC/)
37 Signal Ground

19

4 RTS (Request to Send)

5 CTS (Clear to Send)

6 DSR (Data Set Ready)

7 SGND (Signal Ground)

8 CD (Carrier Detect)

9 RC/ (Receive Timing-B)

10 CD/ (Carrier Detect-B)

11 XTC/ (External Transmit Clock)

12 TC/ (Test Control-B)

13 CTS/ (Clear to Send)

14 TD/ (Transmit Data-B)

S1-1

S1-2

S1-3

S1-4

20

APPENDIX D

RS-422/RS-530 Interface

DB-25 Connector

Pin #

Signal

1 FG (Frame Ground)
2 TD (Transmit Data)
3 RD (Receive Data)

S1-4

S1-3

S1-1

S1-2

21

Copyright ©2006

Patton Electronics Company

All Rights Reserved

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: [e-mail]

Support E-mail: [e-mail]

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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