Cisco Cisco PVC300 Pan Tilt Optical Zoom Internet Camera 维护手册
Getting to Know the PVC300 PTZ Internet Camera
Overview
Cisco Small Business Administration Guide for the Model PVC300 PTZ Internet Camera with Audio and PoE
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Figure 3 Internal Microphone
General I/O Terminal Block
The General I/O Terminal Block allows you to connect the camera to external
input/output devices.
input/output devices.
The ports are numbered from 1 to 4. If you place the camera on a table and look at
the back side, port 1 is left-most port and port 4 is the right-most port.
the back side, port 1 is left-most port and port 4 is the right-most port.
The following table describes the ports:
272878
Internal
microphone
Port #
Description
1
Power
12VDC +- 5% 1.5A max, Max rating 2.0A
2
Digital output
Max. 40 VDC, Max. 400mA, isolation 2kV
3
Digital input
Open/short-to-ground, isolation 2kV, internal pull-up
4
Ground