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Conettix D6600/D6100IPv6/D6100i | Computer Interface Manual | 2.0 Making the Right Connection

Bosch Security Systems, Inc. | 2012.09 | 4998122703-05

2.0 Making the Right Connection

2.1 COM3 DB9 Connector

The COM3 Port uses a standard DB9 female connector. The suggested connections to the computer

are shown in Figure 4 to Figure 6.

When connecting data terminal equipment (DTE) together (such as a COM1 port to PC serial port), a

null-modem cable must be used. One possible configuration for a null-modem cable is shown in

Figure 4.

Figure 4: Null Modem Cable Configuration

DTE

DB-9 Pin

DTE

DB-9 Pin

When connecting data terminal equipment to data communication equipment (DCE) (such as the

D6600/D6100IPv6/D6100i COM port to a modem), a modem cable should be used (such as a straight-

through cable shown in Figure 5).

Figure 5: Straight-through Modem Cable Configuration

Each pin of the modem cable is defined in Figure 6.

DTE

DCE

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