Main Features
iSTAR Ultra Installation and Configuration Guide 1–9
 Large standard two-piece terminal blocks and spacing minimize the potential of mis-
wiring.
 1 USB 2.0 Port for communication to the GCM.
I/O (per GCM)
 RS-485 Comm Ports
• 2 four-pin Ports for Aperio Hubs
 USB 2.0 Ports
• 4 USB host port. 
• The only use of USB in the first version is to connect to the ACMs and to import 
encryption keys, in the same way as iSTAR eX.
• 1 USB Micro B port. (not currently used).
 Serial debug port. Data is also available using ICU iWatch2.
Communications
 Two 1 Gbps full duplex, Auto Sense Ethernet Ports.
 FIPS-197 and AES 256-bit encryption.
 Can cluster with other iSTAR Ultras either encrypted or non-encrypted.
 Can cluster with iSTAR Edges, eXs, Pros, iSTAR Ultra SEs (Ultra Mode) and other iSTAR 
Ultras, when encrypted.
FAI 
Fire Alarm Interlock. When the F input is true, FAI activates relays that are enabled for FAI by 
individual enable switches. The Primary relays (large, mounted in sockets) can be configured 
to activate when the FAI signal goes true.
Onboard Controls 
 LCD with backlight for Status and Diagnostics.
 Rotary switch for diagnostics, as with iSTAR eX and Edge.
 LEDs for serial, Ethernet, power and relay states.
• Two power LEDs: one super bright LED that is on when the enclosure door is closed, and 
one green LED that is always on when main power is present.
• Relay activation LEDs are not affected by enclosure door.
• All other LEDs only turn on when enclosure door is open.
 Soft Reboot button. (Also backs up the DB).
 Hard Reset (Stops Linux. Can be used to restore Factory defaults) See Table 5-1 on 
page 5-4.