3.13 Automation Computer Connection; 3.13.1 Computer Port Baud Rate Selection; 3.14 Master/Slave Receiver Linking; 3.14.1 Receiver Linking Cabling Connections - Honeywell ADEMCO MX8000 Installation And Operation Manual

MX8000 Installation and Operation Guide

3.13 Automation Computer Connection

An automation computer can be connected to Com Port 1 on the MX8000 receiver. Com Port 1 is a 9-pin DTE
port. Refer to Section 8 for details on automation communication protocols. The diagrams below describe
some of the cable options.

3.13.1 Computer Port Baud Rate Selection

The computer port baud rate is selectable from 110 to 38400 (See Section 5 – Programming)

3.14 Master/Slave Receiver Linking

The SBUS connector on the receiver can be used to link up to 3 receivers outputting to one automation
computer and/or printer depending on the Master/Slave configuration. When this configuration is used, 1
receiver is set up as a master and remaining receivers are set up as slaves. The linking feature can decrease
the number of serial ports required on the automation computer and/or the quantity of dot matrix printers
used for automation backup. When using this feature, if the automation computer goes down, the
information normally sent to the automation computer is output to the automation backup printer preceded
by the receiver number that the information is coming from.

3.14.1 Receiver Linking Cabling Connections

To use master/slave receiver linking, connect the receivers as shown in Figure 3–17 for linking to a printer
or to both a printer and automation computer. If linking to only one slave receiver, simply omit the cable
3–12
MX8000 9-PIN DTE
4 DTR
6 DSR
7 RTS
8 CTS
1 DCD
3 TXD
2 RXD
5 GND
Figure 3–15: 25-Pin Null Modem Cable Connection
MX8000 9-PIN DTE
4 DTR
6 DSR
7 RTS
8 CTS
1 DCD
3 TXD
2 RXD
5 GND
Figure 3–16: 9-Pin Null Modem Cable Connection
25-PIN DTE
DTR 20
DSR 6
RTS 4
CTS 5
DCD 8
TXD 2
RXD 3
GND 7
9-PIN DTE
DTR 4
DSR 6
RTS 7
CTS 8
DCD 1
TXD 3
RXD 2
GND 5