I actually do not remember if I had to program in the expansion card or if it was auto-detected on my 1864.
There are tons of PDF programming guides out there for this super impressive DIY home alarm system. I even have the Envyaslink connected to mine so that it talks to my local network.
1.3 Zone Expanders
Zone expanders add zones in groups
of eight to the Alarm system. Module
jumpers J1, J2, J3 are required to
assign zones to these modules.
Jumper settings for PC5108 v2 are
• PC5108 v1.0 supports first 32
• PC5700 enrolls as two modules
• Do NOT use PC5108 v1 and
PC5108 v2 on the same panel.
J1 J2 J3
ON ON ON Zones Disabled
OFF ON ON Zones 09-16
ON OFF ON Zones 17-24
OFF OFF ON Zones 25-32
ON ON OFF Zones 33-40
OFF ON OFF Zones 41-48
ON OFF OFF Zones 49-56
OFF OFF OFF Zones 57-64
Refer to the associated installation sheet