www.advantech.com/products online download features new EKI-2725 eki-2728 5-port gigabit unmanaged industrial ethernet switch 8-port gigabit unmanaged industrial ethernet switch specifcations communications standard ieee 802.3, 802.3u, 802.3x, 802.3ab lan 100base-tx, 10/1000base-t transmission distance up to 100m (4-wire cat.5e, cat.6 rj-45 cable) transmission speed up to 1000 mbps interface connectors 5 x rj-45 (EKI-2725) or 8 x rj-45 (eki-2728) 6-pin removable screw terminal (power & relay) led indicators p1, p2, p-fail 10/100/1000t(x): link/activity, duplex/collision power power consumption max. 4.6w power input 12 ~ 48 v dc , redundant dual inputs fault output 1 relay output mechanism dimensions (w x h x d) 37 x 140 x 95 mm enclosure ip30, metal shell with solid mounting kits mounting din-rail, wall protection esd (ethernet) 4,000 v dc surge (eft for power) 3,000 v dc power reverse present overload EKI-2725: 0.9 a @ 12 v dc (re-settable fuse) eki-2728: 1.6 a @ 12 v dc (re-settable fuse) ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? environment operating temperature -10 ~ 60 c (14 ~ 140 f) storage temperature -40 ~ 85 c (-40 ~ 185 f) operating humidity 5 ~ 95% (non-condensing) storage humidity 0 ~ 95% (non-condensing) mtbf 627,958 hrs certifcations safety ul 60950-1, can/csa-c22.2 no.60950 emc u.s.a.: fcc part 15 cispr 22 eu: en55011, en61000-6-4 en55022 class a, en61000-3-2/3 en55024 iec61000-4-2/3/4/5/6/8 en61000-6-2 shock iec60068-2-27 freefall iec60068-2-32 vibration iec60068-2-6 ordering information EKI-2725 5-port gigabit ethernet switch eki-2728 8-port gigabit ethernet switch ? ? ? ? ? ? ? ? ? ? ? ? provides 5 or 8 gigabit ethernet ports with auto mdi/mdi-x supports 10/100/1000mbps auto negotiation supports jumbo frame transmission up to 9kbytes supports 4,000 v dc ethernet esd protection provides surge (eft) protection 3,000 v dc for power line provides slim size, din-rail with ip30 metal mechanism supports redundant 12 ~ 48 v dc power input and p-fail relay provides broadcast storm protection ? ? ? ? ? ? ? ? introduction the EKI-2725/2728 supports gigabit ethernet and has a +12 ~ 48 v dc redundant power input design, and is secured with a double protection mechanism; power polarity reverse protect and an overload current resetable fuse. the former tolerates reverse power wiring (devices will not be damaged if the plus and minus power cables are mixed, even continuing to operate normally. the later secures the system from overload currents; when the power supply turns normal, EKI-2725/2728 will automatically get back to work. each port of eki- 2725/2728 has 2 leds to show the link status transmission speed and collision status. it also provides a relay output for an event alarm. in the event of a power failure, the built-in led will activate the alarm to notify administrators. engineers can simply verify the hardware status by checking the led, and have troubleshooting easy and quick. EKI-2725/2728 comes with compact metal housing that rates ip30 to help against from dusty industrial environments. EKI-2725 eki-2728 rohs compliant 2002/95/ec
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