1. 首先，确认SNMP功能已开启。在APCUPSD配置文件中，将SNMP主机地址设为UPS的IP地址，并检查SNMP配置。

2. 确认在Macintosh系统中安装了APCUPSD软件，并检查配置文件是否正确。以下是示例配置文件：

for example, /usr/local/etc/apcupsd/apcupsd.conf should look like these:

ups.ups1 is the local name of your UPS. If it differs, adjust accordingly.

UPSCABLE ether UPSTYPE snmp DEVICE 192.168.0.2:161:APC:public:::::3 LOCKFILE /var/lock UPSCLASS standalone UPSMODE disable

Don't start up on a power failure by default.

BATTERYLEVEL 5 MINUTES 2 TIMEOUT 0 ANNOY 300 ANNOYDELAY 60

3. 重新启动APCUPSD软件，检查连接是否成功。使用以下命令。

for example, sudo launchctl stop org.apcupsd sudo launchctl start org.apcupsd

如果连接仍然失败，请检查系统日志以获取更多信息。