Communications
6.3
Modem Network Connection
Access control panels can be controlled from the computer's
modem. The modem is assigned from within the VeriTrax AS-
225 software.
Use a modem when the access control panel is too far from
the computer to use a serial connection and an alternative RS-
232/RS-485 network or TCP/IP network is unavailable.
The following diagram illustrates remote site modem
configuration with AC-225.
RS-232
MD-N33
Modem/RS-232
Converter
Telephone
Line
MD-N33
Modem/RS-232
Converter
RS-232
RS-485
Access
Control
Panel
MD-14 RS-232/RS-485
Converter
Figure 22: Remote Site Modem Configuration
Note:
For more information on modem connections, refer to the
MD-N33 User Manual and the AS-225 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
AC-225 Hardware Installation and User Guide
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Summary of Contents for AC-225 PCBA
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