Datasheet

pn 8684R0 FOSTCDR-0812ds page 2/5
©2010 B&B Electronics. All rights reserved
PRODUCT INFORMATION B&B ELECTRONICS
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]
Terminal
Signal
A
RS-232 RD (OUTPUT)
B
GND
C
GND
D
RS-232 TD (INPUT)
E
NOT CONNECTED
F
+10 TO 30 VDC
G
RS-422/485 TDA(-) / DATA A(-)
H
RS-422/485 TDB(+) / DATA B (+)
J
+10 TO 30 VDC
K
RS-422/485 RDA(-) / DATA A (-)
L
RS-422/485 RDB(+) / DATA B (+)
Baud
1
2
3
4
5
R9
TIME OUT
1200
ON
OFF
OFF
OFF
OFF
820 kΩ
8.20 ms
2400
ON
OFF
OFF
OFF
OFF
430 kΩ
4.30 ms
4800
OFF
OFF
OFF
OFF
ON
None
2.20 ms
9600
OFF
OFF
OFF
ON
OFF
None
1.30 ms
19.2K
OFF
OFF
ON
OFF
OFF
None
0.56 ms
38.4K
OFF
ON
OFF
OFF
OFF
None
0.27 ms
57.6K
ON
OFF
OFF
OFF
OFF
None
0.22 ms
76.8K
ON
OFF
ON
ON
OFF
None
0.14 ms
115.2 K ON ON ON OFF OFF None 0.10 ms
153.6K
ON
OFF
OFF
OFF
OFF
6.2 kΩ
0.06 ms
230.4K
ON
OFF
OFF
OFF
OFF
4.3 kΩ
0.04 ms
460.8K
OFF
OFF
OFF
OFF
OFF
2.2 kΩ
0.02 ms
Front Panel
1
Fiber Connectors
Multi-mode, ST Connectors
2
PWR LED
ON When Power Applied
3
TD LED On When Serial Data Transmitted
4
RD LED
On When Serial Data Received
5
DIP Switch
8 Position
6
Terminal Blocks Serial Data and Power
DIP Switch (SW1)
Pos
ON
OFF
1 RS-422/485 Baud Rate Selection
2
RS-422/485 Baud Rate Selection
3
RS-422/485 Baud Rate Selection
4 RS-422/485 Baud Rate Selection
5
RS-422/485 Baud Rate Selection
6
FO Multi-drop Ring
FO Point-to-Point
7
RS-422/485 Mode Selection
8
RS-422/485 Mode Selection
Terminal Block
The Dip-Switch defines the mode of operation when being used for
RS-422 or RS-485. Positions 1 through 5 determine the timeout of
the RS-485 driver. Because the driver is controlled by hardware, a
specific time must be set to tell the hardware how long to wait for
data on the fiber side before turning off the RS-422/485 driver. If this
time is set too short, the driver could be disabled before
transmission is complete, resulting in data corruption. If the time is
set too long, the device may respond before the RS-422/485 driver
in the FOSTCDR is disabled, corrupting this response. Set the
timeout for approximately one character time or longer. The
character times for several different baud rates are selectable on
switch positions 1 through 5. If you need a different timeout than
what is provided, R10 can be removed and replaced with a different
value R9. This table shows different timeout values for the switch
positions as well as R9 replacement values.
UL Installation
Guidance
Underwriters Laboratories Conditions of Acceptability –
When installed in the end-use equipment, consideration
should be given to the following:
1. The wiring terminals are suitable for factory wiring
only.
2. This device is to be mounted in a suitable enclosure
in the end-product.
3. This device is suitable for operation at a maximum
surrounding air temperature as described in the
documentation.
4. These devices are intended for use in a pollution
degree 2 environment.
• Input Voltage: 10 – 30 VDC
• Input Power 4.2 Watts
• Wire Range: 12 – 24 AWG
• Tightening Torque: 4 kgf-cm
• Temperature rating of filed installed conductors is
105 C minimum, sized for 60 C ampacity.
• Use copper wire only
• Maximum surrounding ambient air temperature
80 C