Omega Speaker Systems iSE-TC manual Network Communication Interfaces 1 10Base-T RJ-45 Pinout

2.5 Network Communication Interfaces
2.5.1 10Base-T RJ-45 Pinout		Pin	Name	Description
The 10BASE-T Ethernet network
(RJ45) system is used in the iSE for		1	+Tx	+ Transmit Data
network connectivity. The 10 Mbps		2	-Tx	- Transmit Data
twisted-pair Ethernet system		3	+RX	+ Receive Data
operates over two pairs of wires.		4	N/C	Not Connected
One pair is used for receiving data		5	N/C	Not Connected
signals and the other pair is used		6	-Rx	- Receive Data
for transmitting data signals. This		7	N/C	Not Connected
means that four pins of the eight-pin		8	N/C	Not Connected
connector are used.	Figure 2.6 RJ45 Pinout

2.5.2 10Base-T Crossover Wiring

When connecting the iSE directly to the computer’s network port, the transmit data pins of the

computer should be wired to the receive data pins of the iSE, and vice versa. The 10Base-T

crossover cable with pin connection assignments are shown below.

Use straight through cable for connecting the iSE to an Ethernet hub. The ports on

the hub are already crossed.

2.6 Relay and I/O Contact Wiring Connections

To access the Relay and I/O Contact Connectors you

must remove the cover, refer to Section 2.4.

Figure 2.7 10Base-T

RELAY 2

RELAY 1

INPUTS

Crossover Cable Wiring

It is recommended that you

ground your unit by

1 2 3 4

5 6

1 2 3 4

connecting a wire to the

Ground/Return position of the

connector or by wrapping a wire

9Vdc

RTN

COM2

NO2

COM1

NO1

IN1

IN2

RTN

OUTPUT

around the case’s bottom screw.

Refer to Figure 3.1 for location.

Figure 2.8 Relay and I/O Contact Connections

2.7 DC Power Input Wiring Connections

A universal ac power adapter with 9 Vdc output is included with your unit. It can be plugged in at the bottom of unit (See Figure 2.3).

The unit can also be powered on the Relay Connector Pin 1 and Pin 2 (See Figure 2.8). When using these pins to power the iSE, make sure the power adapter is not used.

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