USB2-H-5004 EasySync, USB2-H-5004 Datasheet - Page 9

• Manufacturer Part Number: USB2-H-5004
• Description: USB Interface IC Hi-speed USB to 4prt Serial RS485 Adapter
• Manufacturer: EasySync

Specifications of USB2-H-5004

• Rohs: yes

2.2.2 Wiring
A standard 0.9m USB “A” to “Mini B” cable is provided.
Insert the A-plug into an available USB Host or Hub port. Insert the Mini B-plug into the B-receptacle on
the USB2-H-5004.
Table 2.1 – RS485 DTE to DCE connection
Figure 2.3 USB2-H-5004 Termination resistor
DTE Pin Number
1
2
3
4
5
6
7
8
9
Signal Name
DATA- = Transmit/Receive
Data, negative polarity
Also Terminator 2
DATA+ = Transmit/Receive
Data, positive polarity
Terminator 1
N/A
GND = signal ground
N/A
echo disable terminal 1
echo disable terminal 2
PWR = +5V DC output
USB2-H-5004 Hi-Speed USB to 4-Port RS485 Adapter Data Sheet
©2010 EasySync Ltd.
Pin 2 of 120R Terminating Resistor. Only Required if the USB2-
H-5004 is the first or last device in a multi-drop RS485 System,
to meet RS485 Termination Requirements.
Pin 1 of 120R Terminating Resistor. Only Required if the USB2-
H-5004 is the first or last device in a multi-drop RS485 System,
to meet RS485 Termination Requirements.
Local echo function control. Connect pin7 and pin 8 can disable
Local echo function control. Connect pin7 and pin 8 can disable
the local echo function. The local echo is enabled by default.
the local echo function. The local echo is enabled by default.
Expected Connect Signal
Document Reference No.: ES_000031
DATA+
DATA-
GND
PWR
N/A
N/A
Clearance No.: ES
Version 1.1
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