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4.4 DESCRIPTION OF SWITCHES
This section describes each switch individually.
4.4.1 Switch 1
You can set the type of fiber keying on RI/RO ports to connect to devices
using 802.5J fiber keying or devices using Cabletron fiber keying.
Switch 1 dictates the type of fiber keying; the setting depends on whether
the attached device is using Cabletron fiber keying or 802.5J fiber keying.
Set the switch as listed in
Cabletron Systems offers complete compatibility with vendor
NOTE
products that comply with the "new" 802.5J standard for fiber
RI/RO ports. Therefore, the MCC-DFL offers connectivity to
products using 802.5J or Cabletron Systems fiber keying.
Table 4-7 Settings For Switch 1 (SW1 And SW2 Switchblocks)
Keying Type for Fiber ST Port
Connection to Cabletron compliant devices
Connection to 802.5J compliant devices
4.4.2 Switch 2
This switch works in conjunction with Switch 4 to select the mode of
operation for the RJ45 port. Use Switch 4 to dictate whether the FOT will
act as a RI/RO device or station/lobe device. Once this has been done,
Switch 2 determines the application of the RJ45 port. The fiber ST
port automatically configures to work with the RJ45 port. For example,
configuring the RJ45 port as a RI, automatically changes the fiber ST port
to a RO. Set the switch as shown in
Table 4-8 Settings For Switch 2 (SW1 And SW2 Switchblocks)
Mode of Operation for RJ45 Port
RO or lobe applications
RI or station applications
Table
4-7.
Table
MCC-DFL SETUP
Set Switch 1 to Position
On
Off
4-8.
Set Switch 2 to Position
On
Off
4-9
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