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Gigabit Ethernet Uplink Modules OmniSwitch 6600 Series Chassis and Hardware Components
page 2-28 OmniSwitch 6600 Series Hardware Users Guide April 2004
Stacking Module
Stacking modules are used to connect OmniSwitch 6624, 6600-U24, and 6648 switches in a stack. The
stack acts as a virtual chassis, with switches serving as primary and secondary management modules and
Network Interface (NI) modules. For detailed information, refer to Chapter 3, “Managing OmniSwitch
6600 Series Stacks.”
For information on installing stacking modules, refer to page 2-29. For information on removing stacking
modules, refer to page 2-31. For important installation restrictions, refer to the chassis front panel informa-
tion on pages 2-3 and 2-9, as well as “Installing Uplink and Stacking Modules” on page 2-29.
Note. Stacking modules cannot be hot swapped at any time. For more information on hot swapping, refer
to Chapter 1, “OmniSwitch 6600 Series.”
Stacking Module Front Panel
Stacking Module Specifications
Number of ports 2
Power Approximately 8 Watts
Data Speed 1 Gigabit per second per stacking cable installed
Connector type High Speed Serial Data Connector (HSSDC)
Chassis port locations 27 and 28 (OS6624 and OS6600-U24);
51 and 52 (OS6648)
Hot-swappable with other module types? No
LINK/ACT LINK/ACT
LINK/ACT LEDs
Each stacking connector has a built-in corresponding LED. This LED
indicates the link and activity status for each connector. The LED dis-
plays green when a valid cable connection exists. Flashes green as data is
being transmitted to, or received from, the adjacent switch in the stack.
HSSDC Stacking Connectors
The stacking module provides two dedicated High Speed Serial Data
Connectors (HSSDCs). These connectors are used to connect OS6624/
OS6600-U24/OS6648 switches in a stack. For detailed information on
stacks, refer to Chapter 3, “Managing OmniSwitch 6600 Series Stacks.”