User Manual

3. Ports Introduction (P 1280 / 1285)
Figure 0-1 Ports of the Oscilloscope (take P 1285 for instance)
1. RS-232C Port (optional)
2. USB port: Supply power by PC USB or the adapter; communicate with PC
3. LAN port (optional): Network port which can be used to connect with PC
4. Probe Compensation: Measurement signal (3.3/1KHz) output
5. MULTI input, trigger output or Pass/Fail output and EXT trigger input
6. Signal input of Channel 2
7. Signal input of Channel 1
Note: (only P 1280/1285) If you use LAN port to communicate with PC, the oscilloscope must be
powered by the adapter.
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