IBM 8265 Nways ATM Switch, Installation Manual

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Installation Guidelines
This section describes guidelines to follow when installing media modules.
1. 8265 media modules can be installed in slots 1–8 and 12–17. Slots 9, 10, and 11, are reserved for
Control Point and Switch modules.
Note: Slot 12 can be only be used in the following circumstances:
a. No CPSW module is installed in slot 11.
b. If the CPSW2 module is installed, the 8265 must be equipped with the backplane Part
Number 26L0112. Release 4 versions of the 8265 are equipped with this backplane. Older
versions of the 8265 are equipped with backplane Part Number 13J8689 and do not
support media modules in slot 12. The backplane part number can be displayed by
entering the the SHOW INVENTORY VERBOSE command. Alternatively, look for "Release
4" on the label to the left-hand side of the power supplies.
Table 3 lists the 8265 media modules that can be installed.
Table 3. Media Module Slot Availability
Module Feature Code
4-port 155 Mbps (MMF) 6540
4-port 155 Mbps (Flex) 6543
1-port 622 Mbps (MMF) 6511
1-port 622 Mbps (SMF) 6512
WAN 2.5 6561
MSS Server 2.5 5401
2. When deciding which available slot to use, consider the following:
Ÿ
If you intend to also install 8260 ATM modules, note that they can only be installed in slots 1, 3, 5,
and 7. See Table 4 on page 37 for the slot widths of the 8260 modules. Make sure that adjacent
slots are also available if you are installing a 2– or 3–slot module.
Note: 8260 modules can only operate in the 8265 when the standard CPSW module is installed.
They will not operate when the enhanced CPSW2 module is installed.
Ÿ
The media module slots are divided into three heat management areas:
– Slots 1 through 8
– Slots 6 through 13
– Slots 10 through 17.
If an overheat condition is detected (due to a fan failure, for example), then modules within that
area are selectively powered down, according to their power class settings, until the temperature
falls below the overheat threshold (how to set power class settings for modules is described in the
8265 Nways ATM Switch User's Guide).
You should therefore install your most important modules in different management areas.
3. When installing a media module on which daughter cards are installed, take special care to insert the
host module straight into the slot. This ensures that daughter cards attached to the host module are
not damaged during host module installation.
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IBM 8265: Installation Guide