USB2-H-9004-M EasySync, USB2-H-9004-M Datasheet - Page 19

• Manufacturer Part Number: USB2-H-9004-M
• Description: USB Interface IC Hi-speed USB to 4prt Srl RS232/RS485 adpt
• Manufacturer: EasySync

Specifications of USB2-H-9004-M

• Rohs: yes

3
3.1
3.1.1 USB
The USB2-H-9004-M is a downstream USB 2.0 Device and is connected via a standard USB-B client
connector to an upstream USB Host or Hub.
Table 3.1 – USB B Receptacle Pin-Out
3.1.2 RS232 Connections
Each RS232 port is connected through a 5mm terminal block connector. This is shown in the following
table:
Table 3.2 – Connections required for RS232 serial interface
Pin Number
Number (Channel 1 to
Terminal Block Pin
Connections
Shield
External Connectors
1
2
3
4
Channel 4)
1
2
3
4
5
8
Case Ground
Bidirectional
Bidirectional
Pin Type
Ground
Power
USB2-H-9004-M Hi-Speed USB to 4-Port RS232/RS485 Adapter Data Sheet
Description
VBUS – USB Power provided from upstream USB Host or Hub
D– = USB data signal, negative polarity
D+ = USB data signal, positive polarity
GND = USB signal ground
Drain = typically connected to the host PC case
Pin Type
PWR output
Ground
Output
Output
Input
Input
©2010 EasySync Ltd.
Description
TXD = Transmit Data
RXD = Receive Data
DTR or RTS = Data Set Ready or Request To
Send
DSR or CTS = Data Carrier Detect or Clear To
Send
GND = RS232 signal ground
+5V DC output
Document Reference No.: ES_000047
Clearance No.: ES
Version 1.0
#34
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