RAD Data comm ARC-101 operation manual Changing Control Port Mode, Pinout

Chapter 2. Installation ARC-101Installation & Operation Manual

Changing

Control Port Mode

When the ARC-101 is used as a DCE or as a DTE, the RJ-45 pinout is:

Pinout	DCE	DTE
Pin 1
Pin 2
Pin 3		DTR
Pin 4	GND	GND
Pin 5	TX Data	RX Data
Pin 6	RX Data	TX Data
Pin 7		CTS
Pin 8
Pin 9		RTS

The ARC-101 is shipped as a DCE. To connect the ARC-101 to a MODEM, the control port mode must be configured to DTE.

To change the control port mode from DCE to DTE, or vice versa:

1.Turn the unit OFF (disconnect the power cord).

2.Unscrew the twelve box cover screws and remove the box cover. The 12 pin DCE/DTE jumper is located on the left side of the ARC-101 mother board when viewed from the rear panel (see Figure 3-2).

3.To change the configuration to:

∙DTE, place the 12 pin jumper on the upper 12 pins.

∙DCE, place the 12 pin jumper on the lower 12 pins.

4.Replace the box cover and tighten the screws.

Figure 2-4 Jumper Settings for DTE

(Two upper pins connected)

Figure 2-5 Jumper Settings for DCE

(Two lower pins connected)

2-4 Cable Connections