Western Telematic MPC-20VD20-1 Appendix C. Connecting Devices to AUX & Remote Ports, RJ-45 DCE

Appendix C. Connecting Devices to AUX & Remote Ports

As discussed in Section 2, the MPC unit includes three RJ-45 AUX Ports and one RJ-45 Remote Port. Typically, the AUX ports are used for connection to up to three additional MPC units (allowing control of up to 80 plugs), and the Remote Port is used for connection to the optional MPC-DISPLAY unit (allowing you to easily see readings on MPC units that may be buried deep within an equipment rack.)

Note however, that in addition to their primary functions, the AUX and Remote ports can also be used for connection to routers and other DCE devices as described in this section. For a description of the AUX port interface, please refer to Appendix B.2. For a description of the procedure that is used to configure the AUX and Remote ports for connection to DCE devices, please refer to Section 5.8.2.

C.1. Connecting an Auxiliary MPC Unit to the MPC AUX Port

Use a DX9F-WTI-RJ Snap Adapter and an RJ-45 Straight Cable to connect an optional Auxiliary MPC unit to the AUX Port on your MPC master unit as shown in Figure C.1 and Figure C.2 below. For instructions on unit configuration, please refer to Section 5.

	RJ-45		DB-9F
	Pin No.	Pin No. Signal
	1	8	CTS
			Pin 1
	2	1	DCD
	3	2	RXD
	4	5	GND
	5	X
Pin 8 Pin 1	6	3	TXD
	7	4	Female
			DTR
	8	7	RTS

Figure C.1: DX9F-WTI-RJ Snap Adapter Interface

	RJ-45 DCE	DB-9M DTE	Optional
MPC Series	AUX Port	Console Port
			Auxilliary
Master	Straight		MPC Unit

Unit RJ-45 Cable

DX9F-WTI-RJ

Snap Adapter

Figure C.2: Connecting an Optional MPC Auxilliary unit to the MPC Master Unit

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