Rockwell Automation 6186M-xxxx Industrial Performance Monitors User Manual - Manual (Page 15)

Rockwell Automation Publication 6186M-UM002B-EN-P - March 2012 15
Installing the Monitor Chapter 2
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.
Figure 1 - Industrial Performance Monitors USB Port, Type A, and Peripheral Devices
Table 2 - 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), a
nd 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