for ultimate Low Profile. The PCB connects via a supplied ribbon cable back to the I/O PCB (Input/Output) that is

housed inside the back box, this is where you will find all the usual Telguard connections. The Multi Layer board

features a built in GSM module where the SIM and antenna both connect.

There is also an option to house the I/O board outside the back box - this is an I/O extension which means that you

can keep the install as safe as possible by having the relays separate from the unit, the back box then has a ‘Pass

Thru’ PCB housed inside.