USB2-H-5002 EasySync, USB2-H-5002 Datasheet - Page 19

• 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

4.2
Table 4.2 – RS485 Electrical Details
4.3
The USB2-H-5002 assigns pin9 of DE-9P to provide +5V DC for an external device that requires power.
The maximum allowable current that can be supplied from the USB bus is 500mA, including the circuitry
of the USB2-H-5002 itself. Up to 250mA (total on 2 ports) may be used by the external devices.
Table 4.3 - Power Output Option
Receiver Input
Transmitter Output
ESD Tolerance
2ContactDischarge
2AirGapDischarge
EN61000-4-
EN61000-4-
Parameter
Parameter
ESD HBM
RS485
VIHYST
Power Output
VCM
VOD
VTH
RIN
IN
I
O
Description
Common-mode input
voltage range
Input Current
Differential Threshold
Voltage,VTH
Input Hysteresis
Input Resistance, RIN
Differential Output
Voltage,
dVOD
RS485 Inputs and
Outputs
RS-485 Inputs and
Outputs
RS-485 Inputs and
Outputs
Description
Output Power Current
USB2-H-5002 Hi-Speed USB to 2-Port RS485 Adapter Data Sheet
©2010 EasySync Ltd.
Minimum
Minimum
-0.2
1.5
12
-7
0
Typical
Typical
+12
±15
±15
20
15
±8
Maximum
Maximum
+0.2
-0.8
250
1.0
5
Document Reference No.: ES_000020
Units
Units
mA
mV
mA
kΩ
kV
kV
kV
V
V
V
Clearance No.: ES
VIN = +12V
VIN = -7V
With RL = 54Ω.
CL = 50pF *
USB2-H-5002
Conditions
Conditions
Version 1.2
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