© Copyright 2015 Lenovo Chapter 2: Installing and Removing the EN4093R 21
Connecting Switch Ports
The switch includes a variety of external port options. Fixed ports, such as the RJ-45
management port, can be connected directly by attaching the appropriate cable.
Modular ports, such as Small Form-factor Pluggable Plus (SFP+) and Quad Small
Form-factor Pluggable Plus (QSFP+) ports, require the installation of a transceiver
module before the cable can be attached. This section covers each supported port
type separately:
•
“The Serial Console Port” on page 21
•
“The RJ-45 Management Port” on page 22
•
“SFP+ Ports” on page 24
•
“QSFP+ Ports” on page 26
Notes:
•
The illustrations in this document might differ slightly from your hardware.
•
While the information in this section describes the 10 Gigabit Ethernet (GbE)
SFP+ transceiver module, it also applies to the 1 GbE SFP transceiver module.
•
The switch supports MSA-compliant copper DACs, up to 5 m (16.5 ft.) in length.
The Serial Console Port
Connecting the Serial Console Cable
To use the serial console, connect a serial cable to the RS-232 serial console port of
the switch and the other end of the cable to the console device.
Note: You must use one of the two cables in the Serial Access Cable option.
If your console device uses a standard RS-232 DB9 connector, attach the included
mini-USB-to-DB9 serial cable. Otherwise, if your console device uses an RJ-45
connector, attach the included mini-USB-to-RJ-45 serial cable and a user-supplied
RJ-45 adapter cable. Your adapter cable depends on the pin out required by your
console device. Pin out of the mini-USB-to-RJ-45 cable is as follows:
For additional information, see “Accessing the Switch Through the Serial-Port
Interface” on page 38.
Table 2. Pin out for the included mini-USB-to-RJ-45 cable
PIN # Function Direction
1 Not connected
2RXDIn
3TXDOut
4GND
5GND
6 Not connected
7 Not connected
8 Not connected
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