Specifications

Summit WM Series WLAN Switch and Altitude Access Point Software Version 4.1 Technical Reference Guide
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6 Summit WM series switch WM200/2000
Hardware maintenance
WARNING!
The Summit WM series switch WM200/2000 system may not be operated in a LAN in which a DC voltage is
overlaid on the data lines, since there are still switches that connect directly without checking the supply voltage
first. Depending on the transformer at the LAN interface, voltages of up to 500 V can be induced. Such peak
voltages usually lead to destruction of the physical LAN controller's logic.
Summit WM series switch WM200/2000 (Figure 8) consists of a cassette with a cPCI backplane, SC 1100
card, MF 1000 card, NP 4000 card, power supply unit and redundant fan modules. Depending on the
power supply module used, it can operate with either 110 or 230V AC.
There is no electrical connection between the access point and the Summit WM series switch WM200/
2000. The Summit WM series switch WM200/2000 and access points communicate with each other
exclusively via the IP network. For more information, see the Summit WM Series WLAN Switch and
Altitude Access Point Software Version 4.1 User Guide.
Figure 8: Summit WM series switch WM200/2000 front panel
MF 1000, SC 1100 and NP 4000 maintenance is achieved by replacing the affected parts.
WARNING!
You should properly shutdown the system prior to performing any maintenance on the system's main processing
components, including the MF 1000, SC 1100, and NP 4000 cards. For more information, see “Turning off the
redundant AC-Powered, Summit WM series switch WM200/2000” on page 72.