ES-U-2016-RM EasySync, ES-U-2016-RM Datasheet - Page 25

• Manufacturer Part Number: ES-U-2016-RM
• Description: USB Interface IC USB to 16 Ports RS422/RS485, Metal
• Manufacturer: EasySync

6.2
DB-9 Male connector
The table below shows the RS-422 pin-out of the DB-9 Male connector
5-way Terminal Block
The table below shows the RS-422 pin-out of the 5 way terminal block (only available on some models).
Pin Number
Pin Number
Shield
RS-422 Signal Pin-out
1
2
3
4
5
6
7
8
9
1
2
3
4
5
Case Ground
Pin Type
Pin Type
Ground
Ground
Output
Output
Output
Output
Output
Output
Input
Input
Input
Input
Input
Input
Table 16
Table 15
Description
TxD- = Transmit data, negative polarity
TxD+ = Transmit data, positive polarity
RxD+ = Receive data, positive polarity
RxD- = Receive data, negative polarity
GND = Signal ground
RTS- = Request to send, negative polarity
RTS+ = Request to send, positive polarity
CTS+ = Clear to send , positive polarity
CTS- = Clear to send, negative polarity
Drain = typically connected to the host PC case
Description
TxD- = Transmit data, negative polarity
TxD+ = Transmit data, positive polarity
RxD+ = Receive data, positive polarity
RxD- = Receive data, negative polarity
GND = Signal ground
©2010 - 2011 EasySYNC Ltd.
RS-422 Pin-Out for 5-way terminal block
RS-422 Pin-Out for DB-9 connector
Document Reference No.: ES_000061
USB to Serial Converters Manual
Clearance No.: ES
Version 1.2
# 35
25