- 4 Pair Cable Wiring
- Power outlet
Manufacturer discontinued but maintenance vendor will continue to support. Units are no longer available for purchase or install.
Failed units will be replaced with like-unit until vendor stock is depleted after which the M5316 will be substituted. If there is an existing adjunct [EA18B], it must be changed to the newer M522 adjunct [EAN2A].
- Hold, mute, or release keys
- Volume control
- Speaker Phone
- 10 Lines
- 12 LCD line status indicators