User Manual

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Communication Connections
The EDS-205A models have 4 or 5 10/100BaseT(X) Ethernet ports, and 1
or 0 (zero) 100 BaseFX multi/single-mode (SC/ST-type connector) fiber
ports. The EDS-208A models have 6, 7 or 8 10/100BaseT(X) Ethernet
ports, and 2, 1 or 0 (zero) 100 BaseFX multi/single-mode (SC/ST-type
connector) fiber ports.
10/100BaseT(X) Ethernet Port Connection
The 10/100BaseT(X) ports located on the EDS’s front panel are used to
connect to Ethernet-enabled devices. Below we show pinouts for both
MDI (NIC-type) ports and MDI-X (HUB/Switch-type) ports, and also show
cable wiring diagrams for straight-through and cross-over Ethernet
cables.
10/100Base T(x) RJ45 Pinouts
MDI Port Pinouts
MDI-X Port Pinouts
8-pin RJ45
Pin
Signal
1
Tx+
2
Tx-
3
Rx+
6
Rx-
Pin
Signal
1
Rx+
2
Rx-
3
Tx+
6
Tx-
RJ45 (8-pin) to RJ45 (8-pin) Straight-Through Cable Wiring
RJ45 (8-pin) to RJ45 (8-pin) Cross-Over Cable Wiring