
Riverstone Networks RS 8000/8600 Switch Router Getting Started Guide 3-17
Hardware Installation
Installing the Hardware
3.3.10
Multi-rate WAN Line Card and WICs
This section describes the procedure for installing the Multi-rate WAN line-card. Additionally, if your configuration
uses either a Clear Channel T3 or E3 WIC, you must consider the setting of the WIC module’s grounding-jumpers.
Setting Jumpers on the Clear Channel T3/E3 WICs
Both the Clear Channel T3 and E3 WICs contain a set of jumpers (JP2, JP3,and JP4). These jumpers allow you to set
whether the shielding of the transmit (Tx) and Receive (Rx) cables are grounded. In their default positions, the jumpers
are set such that the shielding on the Tx cable is grounded at the RS and the shielding on the Rx cable is not grounded
at the RS (see
Table 3-6
and
Figure 3-13
).
To ground the shielding on the Rx cable
– Remove the jumper block on JP4 and place it on the pins of JP3.
Note
The industry standard for E3 is both Tx and Rx cable shielding grounded. To be
E3 industry-compliant, the jumper block must be moved from JP4 to JP3.
To remove grounding of the shielding on the Tx cable
– Remove the jumper block on JP2.
Figure 3-13 Jumper position on Clear Channel T3 and E3 WICs
Table 3-6
Jumper default settings
Jumper
Default Position
Setting
JP2
Jumper block in place
Shielding on Tx cable is grounded at the RS
JP3
No jumper block in place (open)
Shielding on Rx cable is not grounded at the RS
JP4
Jumper block in place
Storage jumper for jumper block to be used on JP3
JP2
JP4
JP3
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This is a chip
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Front of Clear Channel T3/E3 WIC
Jumper Block is
Stored on JP4
To Ground the Rx Line
Shielding, Remove the
Jumper Block onJP4
and Place it on JP3
JP3
To un-ground the Tx Line
Shielding, Remove
Jumper Block from JP2
Содержание RS 8000
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