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Specifications
Processor
The CPU processor is a Freescale PowerPC 8540 operating at 667 MHz.
Memory
SDRAM
Synchronous Dynamic RAM is used for the storage of uncompressed executable code and data
structures. The SDRAM consists of a 256 MB DDR-1 DIMM in the base module, expandable up to
1 GB. The DDR-1 interface is 64 bits running at 166 MHz bus speed (333 MHz data rate).
Flash
The flash consists of a 128 MB Compact Flash expandable up to 1 GB, and a 4 MB mirror-bit flash.
The mirror-bit flash is used for initial boot code. The Compact Flash is used for non-volatile
configuration storage, and compresses code storage. The Compact Flash is socketed for future upgrade
capability.
The Compact Flash may be programmed in a bulk fashion or one sector at a time. Since all application
code is executed out of SDRAM, the Compact Flash may be programmed while the router is
operational. The Compact Flash is sized such that a back up copy of an older revision of application
code may also be stored.
Console port
An RS-232 serial port is supported for local management and configuration. The DB-9 serial port is
located on the front panel of the HP ProCurve Switch 3500yl-24G-PWR and on the back panel of the
HP ProCurve Switch 3500yl-48G-PWR. To connect to the console, a standard null modem cable is
used that is equivalent to the cable used for other HP ProCurve switches like the HP ProCurve 5300xl
series.
LED status indicators
Refer to the appendix for information about the LED status indicators of the HP ProCurve Switch
3500yl series.
Additional line interface module
The HP ProCurve Switch 3500yl series supports one additional line interface module, the HP
ProCurve Switch yl 10-GbE 2p CX4 + 2p X2 Module that is installed on the back panel of the switch.