IBM R31 - Manual (Page 58)

Feature Description
Ethernet (optional) Intel 82550GY on board . It supports
10/100Mbps
IEEE 1394 (optional) Ti TSB43AB22 1394 controller on
board
IEEE 1394.a 4–pin connector — no
cable power
100Mbps, 200Mbps and 400Mbps
PC Card (PCMCIA) One Type I/II or Type III
I/O ports External monitor
Speaker-out
Microphone-in
DC-in
TV-out (S-Video out)
Parallel
Two USB
IEEE 1394a (optional)
Telephone (RJ11)
LAN (RJ45, optional)
Power 72–Watt AC Adapter
6–cell Li-Ion & 8–cell NiMH Battery
Packs (Dumb Battery)
Status indicators
The system-status indicators on the computer show the
current status of your computer by their on or off states
and colors (green and orange). Each indicator is identified
with a symbol. The following shows the location and the
52 ThinkPad R30/R31 HMM