Westermo TD-29 User Manual

User Guide

6611-2002

TD-29 DC

Westermo Teleindustri AB

©

FSK-modem

Multidrop 2-wire

www.westermo.com

2

6611-2002

Legal information

The contents of this document are provided “as is”. Except as required by applicable
law, no warranties of any kind, either express or implied, including, but not limited to,
the implied warranties of merchantability and fitness for a particular purpose, are made
in relation to the accuracy and reliability or contents of this document. Westermo
reserves the right to revise this document or withdraw it at any time without prior
notice.

Under no circumstances shall Westermo be responsible for any loss of data or income
or any special, incidental, and consequential or indirect damages howsoever caused.

More information about Westermo can be found at the following Internet address:

http://www.westermo.com

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6611-2002

Safety

!

!

!

General:

Before using this unit, read this manual completely and gather all information on
the unit. Make sure that you understand it fully. Check that your application does
not exceed the safe operating specifications for this unit.

Before installation, maintenance or modification work:

Prevent damage to internal electronics from electrostatic discharges (ESD)
by discharging your body to a grounding point (e.g. use of wrist strap).
Prevent access to hazardous voltages by disconnecting the unit from DC
power supply and all other electrical connections.

Installation:

This unit should only be installed by qualified personnel.
This unit should only be installed in a “restricted access area”, for example a
lockable cabinet where access is restricted to service personnel only.

This unit is intended for permanent connection to the DC power supply.
The power supply wiring must be sufficiently fused, and if necessary it must be

possible to disconnect manually from the DC power supply. Ensure compliance to
national installation regulations.

Units with the rated voltage up to 42.4 V peak or 60 VDC, are defined as class III
equipment and shall be separated from hazardous voltage by double or reinforced
insulation.

This unit uses convection cooling. To avoid obstructing the air flow around the unit,
follow the spacing recommendations (see Installation section on page 13).

The TD-29 is designed to be used on dedicated lines and is not
approved to European standard CTR-15 (2-wire leased line).

Maintenance

No maintenance is required, as long as the unit is used as intended within the specified
conditions.

Agency approvals and standards compliance

Type Approval / Compliance

EMC

2004/108/EC, Electromagnetic compatibility

EN 61000-6-2, Immunity industrial environments

61000-6-4, Emission residential environments

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Declaration of Conformity

Westermo T eleindustri AB

Declaration of conformity

Org.nr/

Postadress/Postal address

Tel.

Telefax

Postgiro

Bankgiro Corp. identity number Registered office

S-640 40 Stora Sundby 016-428000 016-428001 52 72 79-4 5671-5550 556361-2604 Eskilstuna

Sweden Int+46 16428000 Int [phone]

The manufacturer

Westermo Teleindustri AB
SE-640 40 Stora Sundby, Sweden

Herewith declares that the product(s)

Type of product Model Art no

Multidrop FSK-modem TD-29 DC 3611-0001

is in conformity with the following EC directive(s).

No Short name

2004/108/EC Electromagnetic Compatibility (EMC)
2011/65/EU Restriction of the use of certain hazardous substances in electrical and

electronic equipment (RoHS)

References of standards applied for this EC declaration of conformity.

No Title Issue

EN 61000-6-2 Electromagnetic compatibility – Immunity for

industrial environments

2005

EN 61000-6-4 Electromagnetic compatibility – Emission for

industrial environments

2007
+A1:2011

The last two digits of the year in which the CE marking was affixed: 13

Pierre Öberg
Technical Manager
27

th

March 2013

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Description

The TD-29 is designed for communication on 2-wire copper cable (twisted pair).
Multidrop or point to point is possible.The TD-29 will support half duplex at baud rates
up to 19.2 kbit/s.

The TD-29 is easy to configure for different operating conditions with DIP-switches.
Character formats, baud rate, transmission level, DCD detection level and communication
interface are selectable. DTE-equipment can be connected through an RS-232 or
an RS-422/485 interface.The RS-232 connection can be made through either the DB-9
connector or screw terminal on the front of the unit.There are four baud rate settings.

When using the RS-232 interface the direction of communication can be controlled by
RTS handshake signal or incoming data.

When connecting in multidrop configuration the maximum bus length depends on the
number of units connected. (see below)

Maximum range and signal loss

Transmission speed

(bit/s)

2 400 16 1.5 0.2

4 800 14 1.7 0.2

9 600 11 2.1 0.3

19 200 9 2.5 0.4

Measured with Cat. 5 cable UTP 4x2x24AWG. Signal level >–24 dBm. The bus length depends on the line quality.

Turning time (RS-485)

Data rate bit/s Turning time µs

2 400 800

4 800 400

9 600 320

19 200 300

Range

point-to-point

(km)

Signal loss

(dB/km)

Loss per unit

(multidrop) (dB)

Environmental conditions

Environmental phenomena Basic standard Description Test levels

Temperatures Operating 5 to +50°C (41 to +122°F)*

Storage and transport –40 to +85°C (–40 to +185°F)

Humidity Operating 5 to 95 % relative humidity

Storage and transport 5 to 95 % relative humidity
Altitude Operating 2 000 m / 70 kPa
Service life Operating 10 year

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Interface specifications

Power TD-29 DC

Rated voltage 24 VDC

Operating voltage 12–36 VDC

Rated current 200 mA

Rated frequency –

Connection 2-pos. screw term.

Connector size 0.2–2.5 mm² (AWG 24-12)

RS-422/485

Electrical specification RS-422/485

Data rate 2 400 bit/s–19.2 kbit/s

Connection 5-position screw terminal

Connector size 0.2–2.5 mm² (AWG 24-12)

Circuit type TNV-1, twisted pair, shielding not required

RS-232

Electrical specification RS-232

Data rate 2 400 bit/s–19.2 kbit/s

Connection 9 position D-sub, DCE

Circuit type SELV, max 15 m length, shielding not required

Line interface

Electrical specification –

Data rate 2 400 bit/s–19.2 kbit/s

Connection 2 position screw terminal

Connector size 0,2–2,5 mm² (AWG 24-12)

Circuit type TNV-3

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Connections

RS-422/RS-485
4-pos screw terminal
(see next page)

LED indicators
(see below)

Line connection
(see next page)

RS-232
5-pos screw terminal
(see next page)

9-pos D-sub

RS-232
(see next page)

Power supply
(see next page)

LED Indicators

LED Status Description

PWR LED on

LED off

RD LED on

LED off

TD LED on

LED off

RTS LED on

LED off

DCD LED on

LED off

CTS LED on

LED off

Power on
Power off

Receive Line Data active

Transmit Line Data active
Receive Line Data inactive

Request To Send active
Request To Send inactive

Data Carrier Detect active
Data Carrier Detect inactive

Clear To Send active
Clear To Send inactive

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6611-2002

Interface RS-232

5

4

3

2

1

9

8

7

6

56789 4 3

2

1

56789 4 3

2

1

1

2

1

2

9-pos. D-sub

Pin. no.

1 – – –

2 4 Out RD/Received Data

3 3 In TD/Transmitted

4 – – –

5 5 – SG/Signal Ground

6 – Out DSR/Data Set Ready

7 2 In RTS/Request to Send

8 1 Out CTS/Clear to Send

9 – – –

9-pos.

Screw terminal

Direction Description

Data

Interface RS-422/485

9-pos.

Screw

Direction

terminal

9 In A' (R+) RS-422 Receiver

8 Out B' (R–) RS-422 Receiver

7 In/Out A (T+) RS-422/485

6 In/Out B (T–) RS-422/485

The definition of R+/R–, T+T– can vary between different manufacturers.

ITU-T V.11

Description

Description

Transmitter/Receiver

Transmitter/Receiver

Line interface

2-pos.

screw terminal

1 In/Out Transmitter/Receiver

2 In/Out (2-wire)

Direction Description

Power connection DC

Screw no. Description Power supply

1 – 0 V DC

2 + 12–36 VDC

9

6611-2002

Configuration

S2:1–4

S1:1–8

1 2 3 4 5 6 7 8 9

!
!

DIP switch settings

DIP-switches are accessable under the lid on top of the unit. DIP-switches are used to
configure the modem.

Warning!

Prevent damage to internal electronics from electrostatic discharges (ESD)
by discharging your body to a grounding point (e.g. use of wrist strap),
before the lid on top of the modem is removed.

Warning! Do not open connected equipment.

Prevent access to hazardous voltages by disconnecting the unit from
DC power supply and all other electrical connections.

NOTE

When configuring via DIP-switches, the settings of DIP-switches configure the unit only
after a power reset. A setting configured by any other method during normal
operation, overrides the DIP-switch setting. However, at power up, the DIP-switch
settings have precedence over the setting configured by any other method.

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6611-2002

Switch block 1 – S1

Character format

ON

S1

1 2 3 4 5 6 7 8

ON

S1

1 2 3 4 5 6 7 8

10 bit/s

11 bit/s

Selection of Baud rate

ON

S1

1 2 3 4 5 6 7 8

ON

S1

1 2 3 4 5 6 7 8

ON

S1

1 2 3 4 5 6 7 8

ON

S1

1 2 3 4 5 6 7 8

2 400 bit/s

4 800 bit/s

9 600 bit/s

19.2 kbit/s

Termination of the line*

ON

S1

1 2 3 4 5 6 7 8

ON

S1

1 2 3 4 5 6 7 8

No
termination

Termination

Carrier active using

RTS or incoming data

ON

S1

1 2 3 4 5 6 7 8

ON

S1

1 2 3 4 5 6 7 8

Data

RTS

Selection of transmission level*

ON

S1 –9 dBm

1 2 3 4 5 6 7 8

ON

S1

1 2 3 4 5 6 7 8

5 dBm

* Load 600 Ω

Selection of

minimum detection level

ON

S1 –30 dBm

1 2 3 4 5 6 7 8

ON

S1

1 2 3 4 5 6 7 8

–20 dBm

* The line should be terminated at the end points.

S1: 8 not used

Switch block 2 – S2

Termination of RS-422*

ON

S2

1 2 3 4

ON

S2

1 2 3 4

No termination

Termination

* The line should be terminated at the end points. * The line should be terminated at the end points.

Factory setting

ON

S1

1 2 3 4 5 6 7 8

Termination of RS-485*

ON

S2

1 2 3 4

ON

S2

1 2 3 4

ON

S2

1 2 3 4

No termination

Termination

11

6611-2002

Functional description

Amplifier S1:6

S1:7

CTSRD TD SG RT S

RTS LED

CTS LED

TD LED

RD

LED

DCD

LED

DSR CTS RTS TD RD SG B A B’ A’

Screw terminalD-Sub

1 2 3 4 5 6 7 82 3 5

0V

0V

F1

0V

+5V

–5V

0V
S2:4

S2:3

S2:2

S2:1

5V

0V

5V

0V

5V

6 7 8 9

MCU

FSK

Demodulator

Isolated

Power Supply

S1:4

0V

0V

PWR

LED

Line

switch

Line

Power Supply

Block diagram

RS-422/485 connection

4-wire 2-wire

TD-29 TD-29

Receiver

Transmitter

NC NC

Twisted pair

9

A’

8

B’

7

A

6

B

5

RS-422
equipment

A

Transmitter

B

Receiver A/A’

A’

Transmitter/
Receiver

B’

Twisted pair

7

6

B/B’ B/B’

5

A/A’

RS-485
equipment

Transmitter/
Receiver

12

6611-2002

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Line connection

2-position
detachable screw terminal

Multidrop half duplex with TD-29

Termination to be set with DIP-switches

13

6611-2002

CLICK!

Mounting

This unit should be mounted on 35 mm DIN-rail, which is
horizontally mounted inside an apparatus cabinet, or similar.

Snap on mounting, see figure.

Cooling

This unit uses convection cooling. To avoid
obstructing the airflow around the unit, use the
following spacing rules. Minimum spacing 25 mm
(1.0 inch) above /below and 10 mm (0.4 inches)
left /right the unit. Spacing is recommended for
the use of unit in full operating temperature
range and service life.

* Spacing (left/right) recommended for

full operating temperature range

10 mm *

(0.4 inches)

25 mm

25 mm

Removal

Press down the black support at the back of the unit
using a screwdriver, see figure.

Westermo • SE-640 40 Stora Sundby, Sweden

Tel [phone] Fax [phone]

Sales Units

Westermo Data Communications

E-mail: [e-mail]

www.westermo.com

China
[e-mail]
www.cn.westermo.com

France
[e-mail]
www.westermo.fr

Germany
[e-mail]
www.westermo.de

For complete contact information, please visit our website at www.westermo.com/contact

REV.A 6611-2002 2013-03 Westermo Teleindustri AB, Sweden – A Beijer Electronics Group Company

North America

[e-mail]
www.westermo.com

Singapore
[e-mail]
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Sweden

[e-mail]
www.westermo.se

or scan the QR code with your mobile phone.

United Kingdom
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