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USB-1608FS-Plus User's Guide Specifications

Power

Table 11. Power specifications

Parameter

Condition

Specification

Supply current

USB enumeration

< 100 mA

Supply current

Including DIO and SYNC output loading

< 500 mA

+5V power available (Note 2)

Connected to externally-powered root port hub or a

self-powered hub

4.5 V min, 5.25 V max

Output current (Note 3)

200 mA max

Note 2: "Self-powered hub" refers to a USB hub with an external power supply. Self-powered hubs allow a

connected USB device to draw up to 500 mA. "Root port hubs" reside in the PC USB host Controller.

The USB port(s) on your PC are root port hubs. All externally-powered root port hubs, such as a

desktop PC, provide up to 500 mA of current for a USB device. Battery-powered root port hubs

provide 100 mA or 500 mA, depending upon the manufacturer. A laptop PC that is not connected to an

external power adapter is an example of a battery-powered root port hub. If your laptop PC is

constrained to the 100 mA maximum, you need to purchase a self-powered hub.

Note 3: Output current is the total amount of current that can be sourced from the PC +5V, SYNC, and digital

outputs.

General

Table 12. General specifications

Parameter

Specification

Device type

USB 2.0 (full-speed)

Device compatibility

USB 1.1, USB 2.0

Environmental

Table 13. Environmental specifications

Parameter

Specification

Operating temperature range

0 °C to 70 °C

Storage temperature range

–40 °C to 70 °C

Humidity

0% to 90% non-condensing

Mechanical

Table 14. Mechanical specifications

Parameter

Specification

Dimensions (L × W × H)

79 × 82 × 27 mm (3.10 × 3.20 × 1.05 in.)

USB cable length

3 m (9.84 ft) max

User connection length

3 m (9.84 ft) max

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