Working With The Configuration Dip Switch; Program Port Connections And Wiring; Front Panel Db9 Program Port; Rear Panel 5-Pin Program Port - AMX NXC-ME260/64 Instruction Manual

This mode should only be used when you suspect the resident NetLinx program is causing inadvertent communication and/or
control problems. If necessary, place the on-board Master in PRD mode and use the NetLinx Studio v 2.4 program to resolve the
communication and/or control problems with the resident NetLinx program. Then download the new NetLinx program and try
again.
NOTE: Think of the PRD Mode (On) equating to a PC's SAFE Mode setting. This mode allows a user to continue powering a unit, update
the f irmware, and download a new program while circumventing any problems with a currently downloaded program. Power must be
cycled to the unit after activating/deactivating this mode on the Program Port DIP switch #1.
Working With the Conf iguration DIP Switch
1. Disconnect the power supply from the 2-pin PWR (green) connector on the rear of the NetLinx Integrated Controller.
2. Set DIP switch positions according to the information listed in theBaud Rate Settings on the Conf iguration DIP Switch andPRD
Mode Settings tables.
3. Reconnect the 12 VDC-compliant power supply to the 2-pin 3.5 mm mini-Phoenix PWR connector.

Program Port Connections and Wiring

There are Program ports located on the front and rear of the NXC-ME260/64 for easy access. Because these ports share the same
circuitry, you should never use both at the same time; doing so will result in communication and/or programming errors.

Front Panel DB9 Program Port

The RS-232 DB9 connector (male) can be connected to a DB9 port on a PC. This connector can be used with serial and NetLinx
programming commands, as well as other DB9 capable devices, to both upload/download information from the NetLinx Studio
program. Refer to the NetLinx Studio instruction manual for programming instructions. The following table shows the rear panel
Program Port connector (male), pinouts, and signals.
Program Port, Pinouts, and Signals
Pin
2
3
5
7
8
NOTE: When wiring the 422/485 connections, do NOT use pre-made 9-wire cable or connect the wire in the cable to any connection
that will not be used by the DB9 serial port. Only use wiring that connects the needed pins.

Rear Panel 5-Pin Program Port

The table below lists the pinouts and signals for the gray rear panel 5-pin 3.5 mm mini-Phoenix Program port connector.
Rear 5-Pin Program Port Pinouts and Signals
Pin
1
2
3
4
5
NXC-ME260/64 - Instruction Manual
Signal
RX
5
TX
4
3
GND
2
RTS
1
CTS
Signal
GND
5
RX
4
3
TX
2
1
CTS
RTS
9
8
7
6
9
8
7
6
Connections and Wiring
9