Table 8. Examples of maximum number of PoE ports for the Switch 3500 series
HP ProCurve switch model
HP ProCurve 620
HP ProCurve 620
* Also these figures indicate the number of ports that are 1+1 with the use of the HP ProCurve 620 Redundant/External Power Supply
The CPU processor is a Freescale PowerPC 8540 operating at 667 MHz .
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) .
The flash consists of a 128 MB CompactFlash, expandable up to 1 GB, and a 4 MB mirror-bit flash . The mirror-
bit flash is used for initial boot code . The CompactFlash is used for non-volatile configuration storage, and it
compresses code storage . The CompactFlash is socketed for future upgrade capability .
The CompactFlash may be programmed in a bulk fashion or one sector at a time . Since all application code
is executed out of SDRAM, the CompactFlash may be programmed while the router is operational . The
CompactFlash is sized such that a backup copy of an older revision of application code may also be stored .
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 24-port switches and on the back panel of the 48-port switches . 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 Switch 5300xl series .
The management module includes a USB auxiliary port used for offline data transfer of files without the need
for a network to be set up . System code can be copied to a USB memory stick, and the system can copy this
image from USB, just as you would over the network .
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 2-Port CX4 + 2-Port X2 Module (J8694A) that is installed on the back panel of the switch .
Total PoE power (watts)
Number of PoE ports at 15 .4 W
Number of PoE ports at 8 W