3.13.1 Computer Port Baud Rate Selection; 3.14 Master/Slave Receiver Linking; 3.14.1 Receiver Linking Cabling Connections; 3.14.2 Master/Slave Linking Programming - Honeywell ADEMCO MX8000 Installation And Operation Manual

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 3–14 for linking to a printer
or to both a printer and automation computer. If linking to only one slave receiver, simply omit the cable
that is not required. The cabling used is standard 4-wire RJ-11 cables (see Figure 3–15) for the
interconnection of the receivers, a standard 25 pin printer cable as described in Section 3.10 and 3.10.1, and
a DTE cable for the automation computer connection as described in Section 3.13. See Section 3.14.2 for
Master/Slave Linking Programming Procedures.
Notes:
•
If necessary, a serial printer can be used as the automation backup printer. In that situation, connect the
serial cable from the COM2 port of the Master Receiver to the printer and omit the parallel printer
connection.

3.14.2 Master/Slave Linking Programming

The receivers may be programmed for master/slave linking to report to an automation computer and/or
printer. The receivers must be programmed for master/slave linking on power-up when this feature is used.
To perform linking programming, see 3.14.2.1 Master Printer/Slave Printer Linking Programming or
3.14.2.2 Master Automation/Slave Automation Linking Programming below.
Note: If it is desired to use linking for both the automation computer and printer, perform the procedures in
3.14.2.2 Master Automation/Slave Automation Linking Programming below. Printer linking will
automatically be in effect when these procedures are performed.
MX8000 9-PIN DTE
4 DTR
6 DSR
7 RTS
8 CTS
1 DCD
3 TXD
2 RXD
5 GND
Figure 3–13: 9-Pin Null Modem Cable Connection
Section 3 – Installation
9-PIN DTE
DTR 4
DSR 6
RTS 7
CTS 8
DCD 1
TXD 3
RXD 2
GND 5
3–11