Multiple Controllers
INSTALLING MULTIPLE PR-4Zi CONTROLLERS As many as four PR-4Zis can be cascaded via DB-25 connectors. Cascading links multizone functions such as SYSTEM ON, SYSTEM OFF, PAGING, and PARTY mode so that these func- tions can be used system-wide. (In order to share sources among linked PR-4Zis you must connect the Source Loop outputs of the parent controller to the A/V inputs of controller #2, and so on.)
The DB-25 cable needs to be a straight pass- through or RS232C rated with a male connector at both ends.
ie. Radio Shack Part # 26-233
Figure 20 – Interface cable connections for multiple PR-4Zi’s
DB-25 MALE / MALE CONNECTOR
