Feature | Description |
| |
IEEE 1394 (optional) | Ti TSB43AB21 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 USBs |
| IEEE 1394a (Selected models only) |
| Telephone (RJ11) |
| LAN (RJ45, Selected models only) |
| |
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 meaning of each icon:
158ThinkPad R30/R31 HMM
