2711P-UM001F-EN-P, PanelView Plus Terminals User Manual

30 Installation
Publication 2711P-UM001F-EN-P - March 2007
The ac powered terminals have a temperature code of T3 when
operating in a 55 °C (131 °F) maximum ambient temperature. Do not
install the terminals in environments when atmospheric gases have
ignition temperatures less than 200 °C (392 °F).
USB Ports
The terminals contain universal serial bus (USB) ports that comply
with hazardous location environments. The 400 and 600 terminals
have one USB port; the 700 to 1500 terminals have two USB ports.
This section details the field-wiring compliance requirements and is
provided in accordance with the National Electrical Code, article 500.
PanelView Plus 400/600 Host Product
USB Port
The USB peripheral device must be rated for use in the hazardous
location environment in which it is used and also comply with the
circuit parameters in Table 2.2.
The circuit parameters in Table 2.1 define the maximum voltage and
current of the USB ports on the terminal.
Table 2.1, PanelView Plus USB Port Circuit Parameters
Associated Nonincendive Field
Wiring Apparatus
USB
Peripheral
Device
Parameter Value Parameter Definition
Voc 5.25V dc Open circuit voltage of the host USB port.
I sc 1.68 A Maximum output current of the host USB port.
The circuit parameters in Table 2.2 define the maximum voltage,
current, capacitance, and inductance values for any peripheral device
connected to a PanelView Plus USB port in a hazardous location
environment.