Specifications
This appendix provides cable and power supply technical specifications for the Catalyst 4900M switches.
Console Port
The console port is an RJ-45 receptacle. The Request to Send (RTS) signal tracks the state of the Clear to Send (CTS) input. Table 1-1 lists the console port pinouts.
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Note A console cable is not provided in the accessory kit. It can be ordered as an option.
10/100/1000BASE-T Management Port
The 10/100/1000BASE-T management port is an RJ-45 receptacle with a Link Status LED. Table 1-2 lists the 10/100/1000BASE-T port pinouts.
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Catalyst 4900M Switch Power Supply Specifications
The Catalyst 4900M switch 1000 W AC-input power supply (PWR-C49M-1000AC) is shown in Figure 1-1 with the major features identified. The 1000 W DC-input power supply (PWR-C49M-1000DC) is shown in Figure 1-2 with the major features identified. Table 1-3 list the power supply specifications.
Figure 1-1 1000 W AC-Input Power Supply (PWR-C49M-1000AC)

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Figure 1-2 1000 W DC-Input Power Supply (PWR-C49M-1000DC)

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Note DC power cable lugs are not supplied as part of the accessory kit; they must be purchased separately. Suitable DC power cable lugs include:
- For 4 AWG-sized cable—Panduit LCD4-14AF-L or Burndy YA4C-2L-90
- For 6 AWG-sized cable—Panduit LCD6-14AF-L
See Figure 1-3 for the dimensions of a suitably-sized lug.
Figure 1-3 DC Power Cable Lug Dimensions

Table 1-3 lists the AC-input and the DC-input power supply specifications.
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