Specifications

9261-7974 Issue 06
ESFIRECODER - Emergency Services Firecoder
Page 5
www.multitone.com
1.3 UPI - USB PERIPHERAL INTERFACE
This Technical Manual does not cover this part, for details see Technical Manual 9261-7909
1.4 UFI - USB FRONT PANEL INTERFACE
The Multitone USB Front Panel Interface (UFI) is a USB V1.1 peripheral designed to provide a display
and user keys for PC. The UFI appears to the PC to be a standard COM port and uses a simple text
protocol (UPIP) for control.
For engineering and test purposes, any PC serial program can be used to send UPIP commands to
the UFI.
A UFI can be connected up to 5m from the PC (this is a limitation of the USB interface).
The USB socket provides two diagnostic LED’s. The Green LED is normally on when the UFI is active,
and flashes off when data is received on the USB port. The Red LED will pulse when the watchdog is
updated and flash when the watchdog has timed out.