User`s guide

Console Port
IRM3 User’s Guide Page A-3
A.4 CONSOLE PORT
Type: Standard 9-pin RS232 Port
A.5 MICROPROCESSORS AND MEMORY
MICROPROCESSORS
Processor Type: Intel 80C186
LAN Controllers: National Semiconductor 8390
MEMORY
Dynamic RAM: 896 k
Static RAM: 128 k
ROM: 128 k
FLASH EPROM
Flash EPROM memory: 256 k bytes organized in
two 128 k x 8 chips
The Flash EPROM memory enables users to upgrade the IRM3 firmware
remotely. A special three page memory scheme allows for programming
the Flash EPROM as well as creating additional board functionality.
A.6 ENVIRONMENTAL REQUIREMENTS
Operating Temperature: +5°C to +40°C (+41°F to +104°F)
Storage Temperature: -30°C to +90°C (-22°F to +194°F)
Operating Humidity: 5% to 95% (non-condensing)
Table A-2 RS232 Port Pinouts
Pin Signal Pin Signal
1 Carrier Detect (CD) 6 Receive Clock (RXCL)
2 Transmit (TXD) 7 Ready to Send (RTS)
3 Receive (RXD) 8 Clear to Send (CTS)
4 Data Terminal Ready (DTR) 9 Ring Indicator (RI)
5 Logic Reference