Measurement-computing USB-1616FS Manual de usuario descargar pdf (Pagina 27)

USB-1616FS User's Guide Specifications

USB +5V voltage

Table 14. USB voltage specifications

Parameter

Specification

USB +5V (VBUS) input voltage range

4.75 V min to 5.25 V max

External power input

Table 15. External power input specifications

Parameter

Conditions

Specification

External power input

+6.0 VDC to 12.5 VDC (9 VDC

power supply included).

Voltage supervisor limits – PWR LED.

(Note 8)

6.0 V > Vext or Vext > 12.5 V

PWR LED = Off (power fault)

6.0 V < Vext < 12.5 V

PWR LED = On

External power adapter (included)

MCC p/n CB-PWR-9V3A

+9 V ±10%, @ 3 A

Note 8: The USB-1616FS monitors the external +9 V power supply voltage with a voltage supervisory circuit.

If this power supply exceeds its specified limit, the PWR LED will turn off indicating a power fault

condition.

External power output

Table 16. External power output specifications

Parameter

Conditions

Specification

External power output – current range

Note 9

4.0 A max

External power output

Voltage drop between power input

and daisy chain power output

0.5 V max

Compatible cable(s) for daisy chain

C-MAPWR-x

X = 2, 3 or 6 feet

Note 9: The daisy chain power output option allows multiple MCC USB Series products to be powered from a

single external power source in a daisy chain fashion. The voltage drop between the device power

supply input and the daisy chain output is 0.5 V max Users must plan for this drop to assure that the

last device in the chain will receive at least 6.0 VDC.

USB specifications

Table 17. USB specifications

USB "B" connector

Input

USB device type

USB 2.0 (full-speed)

Use of multiple USB-1616FS devices requires a USB 2.0 hub.

Device compatibility

USB 1.1, USB 2.0

USB "A" connector

Downstream hub output port

USB hub type

Supports USB 2.0 high-speed, full-speed, and low-speed operating points

Self-powered, 100mA max downstream VBUS capability

Compatible products

MCC USB Series devices

USB cable type (upstream and

downstream)

A-B cable, UL type AWM 2527 or equivalent (min 24 AWG VBUS/GND,

min 28 AWG D+/D–)

USB cable length

3 meters, max (9.84 feet)

1 2 ... 22 23 24 25 26 27 28 29 30

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