Additional Information:
- SCR holding circuits actuate the annunciator signal and LEDs in Bogen's SBA-Series room selector panels
- Provide momentary press-to-call
Compatibility:
- Bogen's PI35A and SI35A Intercom Systems
- Multi-Graphic Series 115B, 2223, and 2233 Institutional/School Communication Systems
- Multicom 2000 Administrative Communication Systems