USB-RS485-WE-1800-BT FTDI, Future Technology Devices International Ltd, USB-RS485-WE-1800-BT Datasheet - Page 8

• Manufacturer Part Number: USB-RS485-WE-1800-BT
• Description: MODULE USB - RS485
• Manufacturer: FTDI, Future Technology Devices International Ltd

Specifications of USB-RS485-WE-1800-BT

• Module/board Type: USB to Serial RS485 Interface Module
• For Use With/related Products: FT232R
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 768-1041

5.2
Table 5.1 USB-RS485-WE Cable Signal Descriptions
5.3
Parameter
Table 5.2 USB-RS485-WE I/O Operating Parameters
*Default is 5V.
***Only applies when POWER output is 5V.
VCC_5V
Orange
Colour
Yellow
Brown
Green
Black
Red
I
T
O
USB-RS485-WE Cable Signal Descriptions
USB-RS485-WE Electrical Parameters
Description
Output Power Voltage*
Output Power Current***
Operating Temperature
Range
Terminator 1
Terminator 2
Data+(A)
Data-(B)
POWER
Name
GND
Copyright © 2010 Future Technology Devices International Limited
Bi-Direction
Bi-Direction
Output
Input
Input
Type
GND
Minimum
Description
Device ground supply pin.
Pin 1 of 120R Terminating Resistor. Only Required if
the USB-RS485-WE cable is the first or last device
in a multi-drop RS485 System, to meet RS485
Termination Requirements.
Default output is +5V when active, 0V during
suspend.
Power output can be customized to 0V, if required,
contact FTDI Sales Team ([e-mail])
Switchable power to external device, 250mA max.
OFF during suspend
Data + (A) Signal
Data - (B) Signal
Pin 2 of 120R Terminating Resistor. Only Required if
the USB-RS485-WE cable is the first or last device
in a multi-drop RS485 System, to meet RS485
Termination Requirements.
4.25
-40
-
Typical
5.0*
USB TO RS485 SERIAL CONVERTER CABLE Datasheet
Maximum
5.25
+85
250
Units
mA
o
V
C
Document Reference No.: FT_000117
This only applies when
cable has been configured to
output 5V. The range is
dependent on the USB port
that the USB-RS485-WE is
connected to
Must be less that 2.5mA
.
during suspend.
Clearance No.: FTDI
Conditions
Version 1.4
7
#75