| Total unshared 10/100Base-T ports per switch (Ports 1–20) |
20 |
| Total shared 10/100/1000Base-T combo ports per switch (Ports 21–24) |
4 |
| Total combo 1000Base-X combo SFP slots per switch (Ports 21–24) |
4 |
| Total 10/100Base-T ports per stack |
160 (stack of eight switches) |
| Total combo SFP slots per stack |
32 (stack of eight switches) |
| Power |
510/360W (AC/DC) power supply |
| Flash memory size |
64 MB |
| RAM memory size |
256 MB SDRAM |
| Overall Width (rack-mount flanges included) |
19 inches, approx. |
| Chassis Width (rack-mount flanges not included) |
17.5 inches |
| Height |
1.5 inches |
| Height (rack units) |
1 RU |
| Chassis Depth |
10.5 inches without power supplies installed;16.75 inches with power supplies installed |
| Weight |
14 lbs. (6.24 Kg) without power supply |
| Humidity |
5% to 90% Relative Humidity (Operating)0% to 95% Relative Humidity (Storage) |
| Operating Temperature |
0 to 45 degrees, Celsius |
| Storage Temperature |
-20 to 70 degrees, Celsius |
| Altitude |
Operating altitude: sea level at 40 degrees, Celsius and10000 feet at 0 degrees, CelsiusStorage altitude: sea level to 40000 feet |
| Standards supported |
802.3z, 802.3ab, 1000Base-T, IEEE 802.3u, IEEE 802.3af (DTE Power Via MDI MIB) ; IAB RFCs 826, 894 |
| Data rate (RJ-45 Ports) |
10 or 100 Mbps (full or half duplex)1 Gigabit per second (full duplex) |
| Data rate (SFP Ports) |
1 Gigabit per second (full duplex) |
| Maximum frame size |
9216 bytes |
| Connections supported |
IP phones, Bluetooth Access Points, Internet Cameras, and other devices requiring power over Ethernet |
| Cable supported (RJ-45 ports) |
10BaseT: unshielded twisted-pair (UTP)100BaseTX: unshielded twisted-pair (UTP), Category 5, EIA/TIA 568 or shielded twisted-pair (STP), Category 5, 100 ohm 1000BaseT: unshielded twisted-pair (UTP), Category 5e |
| PoE Power supplied to port |
Default 15.4watts per portConfigurable from 3watts to 15.4watts per portUsing the 360watts P/S, the maximum available PoE power is 240 watts (less 1watt per port of overhead) per unit.Using the 510watts P/S, the maximum available PoE power is 390watts (less 1watt per port of overhead) per unit.Please refer to the Power Supply Specification Section for more details. |
| Maximum cable distance (RJ-45 ports) |
100 meters |
