Rosslare AC-225? AC-225IP? AC-225U Guide de l'utilisateur télécharger pdf (Page 39)

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

ccess

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 Page 38

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Rosslare AC-225? AC-225IP? AC-225U Guide de l'utilisateur Page 39