BlackDiamond 8800 Series Switches Hardware Installation Guide
49
8900-G48T-xl I/O Module
The 8900-G48T-xl I/O module (Figure 31) has 48 10/100/1000BASE-T ports using standard RJ-45
connectors.
Figure 31: 8900-G48T-xl I/O Module
You can add an optional S-POE daughter card to the 8900-G48T-xl I/O module to provide Power over
Ethernet (PoE) functions in this module. With an installed S-POE card, the ports can deliver PoE to an
attached device, in addition to the usual Ethernet connection, using a single cable. The 8900-G48T-xl
I/O module supports the IEEE 802.3af PoE specification.
When powered devices (PDs) are connected to a port, the PDs are discovered and classified as
802.3af-compliant or as legacy devices. ExtremeXOS software implements the following functions:
● Enables the port for discovery, classification, and power delivery
● Enforces port power limits by denying power to a device exceeding the configured limit
● Enforces class limits by denying power to a device exceeding the class limit
● Reports and tracks port power faults
In the default configuration of the 8900-G48T-xl I/O module, all ports:
● Are added to the default VLAN as untagged
● Inherit the properties of the default VLAN (for example, protocol type and VLANid)
● Operate in autonegotiation mode
The 8900-G48T-xl I/O module has the following LEDs:
● PoE present
● Module status
● Module diagnostics
● Port status
For information about the LEDs and their activity on the 8900-G48T-xl I/O module, see “I/O Module
LEDs” on page 50.
Module status LEDs
BD_280
10/100/1000BASE-T
ports
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