Verify that a live LAN Ethernet cable is connected to the Network Unit LAN port (not the LAN OUT port which is used to daisy-chain to another Network Unit LAN port). Check LAN firewall settings to the cloud (contact your IT Administrator for assistance).
QUATRA uses the Cel-Fi’s WAVE platform to perform management and reporting functions. To facilitate this, the Cel-Fi QUATRA Network Unit is connected to the internet through the install site LAN. Typical data payload is around 2kbps once per hour (system health data) or can increase temporarily during software updates or for remote troubleshooting. Commissioning requires this internet connection, even if temporary. Ping (ICMP) is not supported.
The WAVE system requires the following networking access:
- HTTPS on port 443
- DNS (standard port for DNS is 53)
- DHCP (standard port for DHCP is 67)
- NTP (standard port for NTP is 123)
Connections are always initiated from the device side. There is no need to configure any inbound ports on the firewall, thereby reducing exposure to external threats. To achieve both these attributes and still remain responsive to external commands, QUATRA uses Web sockets. Web sockets is a lightweight IETF protocol that is built on top of HTTP and establishes persistent TCP connections between a client and server. Since the connection is initiated on client side and uses regular HTTPS, typically no special inbound firewall configuration is needed, yet commands can be delivered to the device in real-time.
Outbound URLs are as follows: