The RPM-600EX is an expansion unit for the RPM-600 and RPM-600. Up to 3 Expansion Units can be added, expanding the available function keys to up to 36 per unit. Just suggest to add or remove some zone-selection expander under the power-off status in order to avoid any wrong operation.

• TConnection Cable (on the bottom):Connector I:Used for connection to the RPM-600 or RPM-600or previous RPM-600EX
• Connection Cable (on the bottom):Connector 2:Used for connection to next RPM-600EX
• Indication Label Holder: Write the name,purpose,etc.of theindicator and key on a label and stick on the Label Holder
• Broadcast Zonelndicators Led:Light to indicate the corres ponding selected zone.
• Selection key