GarrettCom Magnum S14 - Manual (Page 23)

S14 Convenient Switches Installation and User Guide (06/04)
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The external DC power plug connector or “jack” is in the right rear of the chassis.
The internal DC input terminal block is also provided on the rear side of the unit.
Port #2 has the capability to configure that port as “FF” Full-Fixed for connecting
the 100Mb Full Duplex ports, or “A” to connect with an auto-negotiating port. Port #2 is
controlled by the manually-selectable slide-switch (FF-A), mounted underneath the port.
Use care in changing the switch position as the switch is small and fragile. See section 4.4.
2.4 Frame Buffering and Latency
The Magnum S14-Series Convenient Switches are store-and-forward switches.
Each frame (or packet) is loaded into the Switch’s memory and inspected before forwarding
can occur. This technique ensures that all forwarded frames are of a valid length and have
the correct CRC, i.e., are good packets. This eliminates the propagation of bad packets,
enabling all of the available bandwidth to be used for valid information.