B&B Electronics FOSTCDRI-ST Quick Start Guide

www.bb-elec.com [e-mail] [e-mail]

International Office: 707 Dayton Road PO Box 1040 Ottawa, IL 61350 USA 815-433-5100 Fax [phone]

European Office: Westlink Commercial Park Oranmore Co. Galway Ireland [phone] Fax [phone]

PRODUCT INFORMATION B&B ELECTRONICS

FOSTCDRI-Sx

Quick Start Guide

Package Contents

FOSTCDRI-Sx Industrial Serial To Single-mode Fiber

Optic Converter
Datasheet (One per shipment)
Power Terminal Block (installed)
Serial Terminal Block (installed)
Fiber Optic Dust Cover (installed)

If any item is missing or damaged, contact B&B Electronics
for a replacement

Front Panel

1

Power TB

2 Position, Removable

2

PWR LED

ON When Power Applied

3

Fiber Port

Single-mode, SC or ST Connectors

4

Fiber RX LED

Flashes when data received

4

Fiber TX LED

Flashes when data transmitted

5

Serial Port TB

5 Position, Removable

6

Serial Switch

Selects RS-232 or RS-422/485 Mode

7

DIP Switch

12 Position

Wiring Terminal

Information

1. Copper Wire Only

2. One Conductor Per Terminal

3. Wire Range 28 to 16 AWG

4. Tightening Torque, 1.7 lb-in.

5. Temperature Rating of Field Wiring - 105°C (221° F)
minimum sized for 60° C (140°F) ampacity.

Note: The label
for the serial
connection
terminal block is
not visible with
the TB installed.
This detail is
provided for
reference.

DIP Switch (SW1)

Pos

ON

OFF

1

RS-485

RS-422

2

HALF-DUPLEX

FULL-DUPLEX

3

2-WIRE

4-WIRE

4

2-WIRE

4-WIRE

5

TERMINATION IN

TERMINATION OUT

6

TX BIAS OUT

TX BIAS IN

7

RX BIAS OUT

RX BIAS IN

8

57.6 KBPS

9

38.4 KBPS

10

19.2 KBPS

11

9.6 KBPS

12

MULTI-DROP

POINT-TO-POINT

Terminal Block

Terminal

RS-232

T-

Output

T+

Not Used

R-

Input

R+

Not Used

G

Ground

Terminal

RS 4852-Wire

RS-422/4854-Wire

T-

Data A(-)

TD A(-)

T+

Data B(+)

TD B(+)

R-

Not Used

RD A(-)

R+

Not Used

RD B(+)

G

Ground

Ground

RS-422/485 Baud Rate /

Timeout

SW1

SW1

SW1

SW1

Timeout

Baud 8 9

10

11

(ms)

9600

OFF

OFF

OFF

ON

1.30

19.2K

OFF

OFF

ON

OFF

0.56

38.4K

OFF

ON

OFF

OFF

0.27

57.6K

ON

OFF

OFF

OFF

0.22

76.8K

ON

OFF

ON

ON

0.14

115.2K

ON

OFF

ON

OFF

0.10

p/n 8405 FOSTCDRI-Sx-1112qsg-1/4

© 2009 by B&B Electronics. All rights reserved.

p/n 8405 FOSTCDRI-Sx-1112qsg-2/4

www.bb-elec.com [e-mail] [e-mail]

International Office: 707 Dayton Road PO Box 1040 Ottawa, IL 61350 USA 815-433-5100 Fax [phone]

European Office: Westlink Commercial Park Oranmore Co. Galway Ireland [phone] Fax [phone]

PRODUCT INFORMATION B&B ELECTRONICS

RS-485 2-Wire

1. Loosen the screws to open the Serial TB Lead Clamps for the T-,

T+, and G terminals.

2. Insert the RS-485 2-Wire Signals Leads. The TB will accept 12 to

28 AWG wire.

3. Tighten the screws to close the Serial TB Lead Clamps. Ensure

the clamps hold the leads securely. However, do not over tighten.

4. Position the 422/485/232 Switch to the 422/485 position.

5. Configure the DIP Switch on the bottom of the converter for RS-

485 2-Wire operation.

Installation Notes:

In 2-Wire mode, T(-) and T(+) terminals are tied to the R(-) and

R(+) terminals with DIP Switch SW1-3 and SW1-4.

If Termination is required, a 120Ω resister can be placed

across the R(-) and R(+) terminals by setting SW1-5 to ON.

This converter has 1.2 KΩ pull-up/down bias resistors built

in. To use this bias, set SW1-6 and SW1-7 to ON.

B&B Electronics’ RS-485 Application Note contains more

information about termination and biasing. This reference is
available on our web site.

For a replacement TB, order part number 7466.

RS-422 / RS-485 4-Wire

1. Loosen the screws to open the Serial TB Lead Clamps for the

T-, T+, R-, R+, and G terminals.

2. Insert the RS-422/485 4-Wire Signal Leads. The TB will

accept 12 to 28 AWG wire.

3. Tighten the screws to close the Serial TB Lead Clamps.

Ensure the clamps hold the leads securely. However, do not
over tighten.

4. Position the 422/485/232 Switch to the 422/485 position.

5. Configure the DIP Switch on the bottom of the converter for

RS-422/485 4-Wire operation.

Installation Notes:

If Termination is required, a 120Ω resister can be placed

across the R(-) and R(+) terminals by setting SW1-5 to ON.

This converter has 1.2 KΩ pull-up/down bias resistors

built in. To use this bias, set SW1-6 and SW1-7 to ON.

B&B Electronics’ RS-485 Application Note contains more

information about termination and biasing. This reference
is available on our web site.

For a replacement TB, order part number 7466.

© 2009 by B&B Electronics. All rights reserved.