6
Industrial Performance Monitors
Rockwell Automation Publication 6186M-IN002C-EN-P - December 2011
Control Drawing - Class I Division 2 and Zone 2 (USB Port-Type A)
The following control drawing is provided to comply with the National Electrical Code, Article
500 pertaining to Class I, Division 2, Groups A, B, C, D and Class I, Zone 2, Group IIC.
Industrial Performance Monitors USB Port (Type A) and Peripheral Devices
Industrial Performance Monitors USB Port (Type A) and Peripheral Device Circuit Parameters
Parameter
Value
Parameter Definition
V
oc (USB)
5.25V DC
Open circuit voltage of each host USB port.
The maximum applied voltage rating, V
max (peripheral)
, of each peripheral
device shall be greater than or equal to V
oc
(USB)
.
V
max (peripheral)
≥
V
OC (USB), as appropriate
I
sc (USB)
950 mA
Maximum output current of each host USB port.
The maximum current, I
max (peripheral)
, to which each USB peripheral
device can be subjected shall be greater than or equal to I
sc
(USB).
I
max
(peripheral)
≥
I
sc
(USB)
C
a (USB)
20 μF
This value is the maximum total capacitance that can be connected to each
USB port. The total capacitance of each USB peripheral and its cable must
not exceed the indicated value.
The maximum total capacitance, C
i (peripheral),
and cable capacitance of
each separate USB peripheral device shall be less than or equal to C
a (USB)
.
C
i ( peripheral)
+ C
cable
≤
C
a (USB)
L
a (USB)
3.11 μH
This value is the maximum total inductance that can be connected to each
USB port. The total inductance of each peripheral device and its cable must
not exceed the indicated value.
The maximum total inductance, L
i (peripheral),
and cable inductance of each
separate USB peripheral device shall be less than or equal to L
a (USB).
L
i (peripheral)
+ L
cable
≤
L
a (USB)
6186M Hub Product
Associated Nonincendive
Field-wiring Apparatus
Nonincendive
Field-wiring Apparatus
USB Peripheral Device
USB Port (Type A)
USB Peripheral Device
USB Port (Type A)
USB Port Type A