IBM ThinkPad R30 Hardware Maintenance Manual page 164

Feature
IEEE 1394 (optional)
PC Card (PCMCIA)
I/O ports
Power
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
meaning of each icon:
158
ThinkPad R30/R31 HMM
Description
Ti TSB43AB21 1394 controller on
board
IEEE 1394.a 4–pin connector — no
cable power
100Mbps, 200Mbps and 400Mbps
One Type I/II or Type III
External monitor
Speaker-out
Microphone-in
DC-in
TV-out (S-Video out)
Parallel
Two USBs
IEEE 1394a (Selected models only)
Telephone (RJ11)
LAN (RJ45, Selected models only)
72–Watt AC Adapter
6–cell Li-Ion & 8–cell NiMH Battery
Packs (Dumb Battery)