NMC 是一种介于UPS和网络的设备，它可以从UPS获得状态信息并且发出指令。NMC支持两种协议－简易网络管理协议(SNMP)和超文件传输协议(HTTP)以供使用者进入。通过SNMP的网络管理站(NMS)和网页浏览器，用户可以获得UPS的状态信息、发出指令至UPS并且通过网络设定NMC。 NMC 也为不同的操作系统提供关机软件。不同操作系统的关机软件可以通过网络连接至NMC，并且利用特殊的通信方式与NMC卡通讯。当UPS发生异常以及用户设置的条件满足时，NMC会发出关机消息至装有关机软件的客户端。关机软件根据自身的设定进行对应的关机的程序，从而避免因电力问题而造成客户端和服务器的不正常关机。
| FEATURES | STK NMC card | | General Features | Web browser or software | | IPv4/IPv6 | Y | | SNMP v1, v2, v3 | Y | | Browser Accessible | Y | | Reboot equipment remotely | Y | | SMTP, SMTPS | Y | | NTP, TFTP, BOOTP/DHCP IPv6 | Y | | Remote Firmware Upgrade | Y | | Data and Event logging | Y | | Remote device management | Y | | Enterprise management system compatible | Y | | LDAP/Radius | TBC | | Advanced Features |
| | Network Protocal | ARP, TFTP, SSH, SSL and ICMP
TCP/IP, UDP, SNMP-V1, SNMP-V2, SNMP-V3 | | Basic Cybersecurity* | Y | | Advanced Cybersecurity* | N | | Modern user experience | Y | | Speed Network Speed | 10/100 | | Card based Real Time Clock | N | | No of Environmental Monitoring Probes | 1 | | Battery test/scheduled test | Y | | UPS remote/scheduled shut down | Y | | Protocol Support |
| | Modbus TCP | Y | | Modbus RTU | N | | BACnet | N | | Sensors |
| | Temperature | Y | | Humidity | Y | | Smoke | Y* | | Door Closure | Y* | | Contact Closure | Y* | | Leak | Y* | | * 2 Contact devices Via EMP001 |
| | HW |
| | CPU | ARM 36MHz 32bit | | Others |
| | MIB | RFC 1628, EPPC | | UPS protocal | Shut | | Cloud Services |
| | Cloud support Remote Monitoring | N | | Predictive Analysis | N |
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