Communications
AC-225 Hardware Installation and User Guide
Page 37
Note:
For more information on modem connections, refer to the
MD-N33 User Manual and the AS-525 software manual.
Hardware Requirements
•
2 Standard Telephone cables – RJ11 plugs in both sides
•
Crossed 9 pin RS-232 cable (female jack on both sides)
•
Rosslare MD-14 (RS-232 to RS-485 converter)
•
2 Rosslare MD-N33 (Modem to serial gateway)
•
Rosslare AC-225 panel
Prerequisites
Before performing permanent modem installations, the modem that will
be connected to the panel must be initialized from the computer running
the AxTrax software.
Computer Connections
The MD-N33 must connect to the computer via a serial port.
To connect to the PC:
1. Connect a 9VDC adapter to the first MD-N33. Make sure that the
power LED (Red) is on.
2. Connect the PC, using an available COM port, to the MD-N33 with
crossed 9 pins RS-232 cable.
3. Connect the MD-N33's RJ11 jack to the telephone line using the
telephone cable.
AC-225 Panel Connections
1. Connect a 9VDC adapter to the second MD-N33. Make sure that the
power LED (Red) is on.
2. Connect the MD-N33's RJ11 jack to the telephone wall mount using
the telephone cable.
3. Connect the MD-N33 DB9 female jack to the MD-14 DB9 female jack.
4. Connect the AC-225 RS-485 outlet to the MD-14 4 wires cable. Make
sure the J1 switch (on the AC-225) is set to RS-485 Mode.