Crestron MPB4-301 4-Series Media Presentation Button Panel 301
The MPB4-301 trades the capacitive volume buttons of the smaller panels for a continuous-turn rotary encoder, ringed by a blue multisegment circular LED graph that shows level at a glance. Five push buttons take any of the 25 predesignated labels or the five blanks included, with custom laser-etched labels available as MPB4/MPC4-BTN5-B or -W ENGRAVED. Mute, volume up and down and power are projected capacitive buttons, and everything on the front panel including the knob is programmable.
Backlighting is white when a button is inactive and blue when active, with a photosensor stepping brightness through three levels and dimming or extinguishing it when the panel idles. It is a button panel rather than a controller, so it needs a separate 4-Series processor. Power arrives as PoE+, requesting 15 W with LLDP advanced power management or 30 W without, and it draws 8.5 W typical. The panel flush mounts in a 2-gang U.S. electrical box, with a security screw included to stop casual removal.
| Buttons | (5) assignable push buttons; 25 predesignated labels and 5 blanks included |
|---|---|
| Volume | (1) continuous-turn rotary encoder with blue LED multisegment circular level graph |
| Additional Controls | Mute, volume up and down, power (projected capacitive); HW-R and SW-R behind the front panel |
| Illumination | Individually backlit white when inactive, blue when active; photosensor autobrightness in three levels |
| Memory | 2 GB SDRAM |
| Ethernet | (1) 1000BASE-TX RJ-45, PoE+ powered device; 802.1X, SNMP, XiO Cloud client |
| Power | IEEE 802.3at Type 2 PoE+; requests 15 W with LLDP or 30 W (Class 4) without; 8.5 W typical |
| Mounting | Flush mount in a 2-gang U.S. electrical box; security screw included |
| Dimensions | 4.50 in H x 5.00 in W x 2.41 in D (114 x 126 x 61 mm); 12.8 oz (363 g) |







