Openpath Core Series - Page 4

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Installation 
NETWORK REQUIREMENTS 
An Ethernet connection with DHCP must be used to connect the ACU to the Local 
Area Network (LAN). You also need to configure firewall settings to communicate with 
the Openpath system. Openpath uses the following outbound ports: 
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● TCP port 443 
● TCP port 80 
● UDP port 123 
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Note: If using an external DNS server, outbound UDP port 53 must also be open. 
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To support Wi-Fi unlocking from the mobile app, the ACU ’ s inbound TCP port 443 
must be available from within the LAN. Inbound port forwarding on the router, firewall, 
or NAT device is not required. 
SELECTING A BACKUP BATTERY 
While not required, Openpath recommends having a backup battery in case of 
power outages. The size of battery depends on your setup and how long you want to 
power the system. 
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Table 1: Power requirements for legacy Smart Hubs (12V) 
Controller board 
1A 
Smart Reader 
0.25A 
Locking hardware 
(while engaged) 
0.25A – 0.5A 
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Assuming a 12V power supply, a Smart Hub configured with four Openpath Readers 
and locking hardware uses 4 Amps. To keep the system running for 3 hours with all 
entries engaged, you need 4A x 3 hours = 12AH, so a 12V 12AH sealed lead acid (SLA) 
or gel cell battery. 
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Version 1.8 
© Openpath 2020 
Page 4 
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