Cisco WS-X45-SUP6-E - Supervisor Engine 6-E Note d'installation et de configuration - Page 11
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EIA/TIA-232 was known as recommended standard RS-232 before its acceptance as a standard by the
Note
Electronic Industries Alliance (EIA) and Telecommunications Industry Association (TIA).
Reset Button
The Reset button is used to restart the switch.
Use a paper clip or other small, pointed object to press the Reset button.
Note
Compact Flash Port
The Flash port accepts both 64 MB and 128 MB Type 1 compact Flash cards. You can use it for file
transfer tasks such as loading a new software image. The Flash card is optional and can be obtained from
third-party suppliers.
For more information, refer to Using the Compact Flash on the Catalyst 4500 Series Supervisor Engines
at the following URL:
http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/hardware/configuration/notes/OL_2788.h
tml
USB Port
A USB connector is provided for future expansion.
Port Cabling Specifications
This section provides port cabling specifications and includes the following subsections:
•
•
The length of your networks and the distances between connections depend on the type of signal, the
signal speed, and the transmission medium (the type of cabling used to transmit the signals). The
distance and rate limits in this document are the IEEE-recommended maximum speeds and distances for
signaling.
Table 2
Rate (bps)
2400
4800
9600
19,200
38,400
78-18337-01
Maximum Cable Distances, page 12
Removing the Supervisor Engine, page 12
Table 2
shows the transmission speed versus the distance.
EIA/TIA-232 Transmission Speed in Contrast with Distance
Distance (ft)
200
100
50
25
12
Installation and Configuration Note for the Catalyst 4500 E-Series Supervisor Engine 6-E
Distance (m)
60
30
15
7.6
3.7
Port Cabling Specifications
11