Figure 162 Alarm Connector Pin Layout; Table 167 Console Port Pin Assignments - ZyXEL Communications MSC1000G User Manual

MSC1000G User's Guide

Table 167 Console Port Pin Assignments

CONSOLE PORT RS – 232 (FEMALE) DB-9F
Pin 1 = NON
Pin 2 = DCE-TXD
Pin 3 = DCE –RXD
Pin 4 = DCE –DSR
Pin 5 = GND
Pin 6 = DCE –DTR
Pin 7 = DCE –CTS
Pin 8 = DCE –RTS
PIN 9 = NON
The CON/AUX port also has these pin assignments. The CON/AUX switch changes the setting in the firmware
only and does not change the CON/AUX port's pin assignments.
ALARM Connector Pin Assignments
The ALARM connector is a DB15F connector.

Figure 162 ALARM Connector Pin Layout

Table 168 ALARM Connector Pin Assignments
PIN DESCRIPTION
1 Common pin for alarm input 1
2 Common pin for alarm input 2
3 Common pin for alarm input 3
4 Normal close for minor alarm output
5 Normal open for minor alarm output
6 Common pin for major alarm output
7 Normal close for critical alarm output
8 Normal open for critical alarm output
9 Normal close for alarm input 1
10 Normal close for alarm input 2
11 Normal close for alarm input 3
536 Appendix A Product Specifications