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4.3.2 Connect to Ethernet
ISCOM2128EA-MA provides 24 10/100M auto-negotiation Ethernet electrical ports; the default
configuration is auto-negotiation enable.
The Ethernet electrical ports of ISCOM2128EA-MA have auto-MDI/MDIX function when
auto-negotiation enable. That is to say, the switch can perform MDI and MDIX signal switchover.
The device can communication in order regardless to the peer device adopts MDI or MDIX port,
straight-through or crossover network cable.
Pin number of RJ45 plug and connector is available in signal definition of CONSOLE port.
The Ethernet ports of ISCOM2128EA-MA are MDI-X ports when disable auto-negotiation, and can
be connected to PC which has MDI port though straight-through cable.
4.3.3 Connect to power supply
Take the power wire in attachment to connect power interface of ISCOM2128EA-MA with 220V (or
-48V) power supply.
4.4 Making cable
Pin number of RJ45 plug and connector is available in signal Definition of CONSOLE port.
Signaling and Pinouts of MDI and MDIX are in the following table:
Pin No.
MDI-X signal
1
2
3
6
4 ,5 ,7 ,8
Straight through cable (100M and 1000M straight through cable are identical)
100M crossover cable
MDI signal
RD+
RD-
TD+
TD-
N.C
TD+
TD-
RD+
RD-
N.C
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