USB2-H-5002 EasySync, USB2-H-5002 Datasheet - Page 10

• Manufacturer Part Number: USB2-H-5002
• Description: USB Interface IC Hi-speed USB to 2prt Serial RS485 Adapter
• Manufacturer: EasySync

Specifications of USB2-H-5002

• 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-5002.
Table 2.1 – RS485 DTE to DCE connection
Figure 2.3 USB2-H-5002 Termination resistor and echo disable
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 enable terminal 1
echo enable terminal 2
PWR = +5V DC output
USB2-H-5002 Hi-Speed USB to 2-Port RS485 Adapter Data Sheet
©2010 EasySync Ltd.
Pin 2 of 120R Terminating Resistor. Only Required if the USB2-
H-5002 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-5002 is the first or last device in a multi-drop RS485 System,
to meet RS485 Termination Requirements.
Local echo function control. Connect to pin 8 can disable the
Local echo function control. Connect to pin7 can disable the
local echo function. The local echo is enabled by default.
local echo function. The local echo is enabled by default.
Expected Connect Signal
Document Reference No.: ES_000020
DATA+
DATA-
GND
PWR
N/A
N/A
Clearance No.: ES
Version 1.2
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