CB-8 is an installation accessory designed to provide convenient and reliable power connections for up to eight (8) RTI in-wall keypads, touchpanels and other devices. In addition to providing power, the CB-8 combines and routes the infrared outputs from the touchpanels to a single output for connection to an RTI control processor. It also carries two-way RS-485 communication between compatible RTI control processors and in-wall controllers. Multiple CB-8 units can be daisy-chained for connecting more than eight devices. 4.3A, 16Vc power supply is included.