Plus RS-232 User Manual download pdf (Page 9)

Document Reference No.: FT_000077

USB TO RS232 SERIAL CONVERTER RANGE OF CABLES Datasheet Version 1.3

Clearance No.: FTDI# 51

5.2 USB-RS232-WE Cable Signal Descriptions

Colour

Name

Type

Description

Black

GND

Device ground supply pin.

Brown

CTS#

Input

Clear to Send Control input / Handshake signal.

Red

POWER

Output

Power output. Default is GND, but can be customised to

output +3.3V or +5V. If required, contact FTDI Sales Team

(sales1@ftdichip.com)

Orange

TXD

Output

Transmit Asynchronous Data output.

Yellow

RXD

Input

Receive Asynchronous Data input.

Green

RTS#

Output

Request To Send Control Output / Handshake signal.

Table 5.1 USB-RS232-WE Cable Signal Descriptions

5.3 USB-RS232-WE Electrical Parameters

Parameter

Description

Minimum

Typical

Maximum

Units

Conditions

VCC_5V

Output Power Voltage*

4.25

5.0*

5.25

*Default is GND. This figure

only applies when cable has

been customised to output

+5V. The range is

dependent on the USB port

that the USB-RS232-WE is

connected to

VCC_3.3V

Output Power Voltage**

3.2

3.3**

3.4

**Default is GND. This

figure only applies when

cable has been customised

to output +3.3V.

Output Power Current***

***Only applies when

POWER output is customised

to +5V or+3.3V

Must be less that 2.5mA

during suspend.

Operating Temperature

Range

-40

+85

Table 5.2 USB-RS232-WE I/O Operating Parameters

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

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