The CP45ARP allows you to attach one APM paging console on the front, while the phoenix connector on the back lets you route the signal to a next paging console or junction box. It can offer 20V power to the APM console and is also equipped with 2 jumpers to terminate the audio -or databus. An advantage the ARP version has over the ARJ version is that it also offers a built-in repeater. This repeater extends the maximum distance from 300m to 600m. The 45 x 45 mm size is compatible with AUDAC, Niko, Legrand and other standard 45 x 45 mm Mounting frames and cover plates.