Western Telematic MPC-20VS16-3 - Manual (Page 195)

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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-DTE-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
2
3
4
5 X
6
7
8
8
1
2
5
3
4
7
CTS
DCD
RXD
TXD
GND
DTR
RTS
Pin 8 Pin 1
Pin 1
Female
Figure C.1: DX9F-DTE-RJ Snap Adapter Interface
MPC Series
Master
Unit
Optional
Auxilliary
MPC Unit
RJ-45 DCE
AUX Port
Straight
RJ-45 Cable
DB-9M DTE
Console Port
DX9F-DTE-RJ
Snap Adapter
Figure C.2: Connecting an Optional MPC Auxilliary unit to the MPC Master Unit