Specifications — MVC 121, cont’d
Contact closure mute control  | 1 = mic 1, 2 = mic 2, 3 = main input  | 
Program control  | Extron's control program for Windows®  | 
  | Extron's Simple Instruction Set (SIS™)  | 
General
External power supply  | 100 VAC to 240 VAC, 50/60 Hz, external; to 12 VDC, 1 A, regulated  | 
Power input requirements  | 12 VDC, 0.5 A.  | 
Temperature/humidity  | Storage   | 
  | Operating +32° to +122°F (0° to +50°C) / 10% to 90%, noncondensing  | 
Cooling  | Convection, no vents  | 
Mounting  | 
  | 
Rack mount  | Yes, with optional 1U, 9.5" deep rack shelf (RSU 129,   | 
  | |
  | VersaTools® 1U, 3.5" deep rack shelf (RSF 123,   | 
  | |
Furniture mount  | Yes, with optional VersaTools mini   | 
  | (MBU 123)  | 
Pole mount  | Yes, with VersaTools mini pole mount kit, part   | 
Enclosure type  | Metal  | 
Enclosure dimensions  | 1.7" H x 4.3" W x 3.0" D (1U high, quarter rack wide)  | 
  | (4.3 cm H x 10.9 cm W x 7.6 cm D)  | 
  | (Depth excludes connectors and knobs.)  | 
Product weight  | 0.6 lbs (0.3 kg)  | 
Shipping weight  | 3 lbs (2 kg)  | 
Vibration  | ISTA 1A in carton (International Safe Transit Association)  | 
Regulatory compliance  | 
  | 
Safety  | CE, CUL, UL  | 
EMI/EMC  | CE,   | 
MTBF  | 30,000 hours  | 
Warranty  | 3 years parts and labor  | 
NAll nominal levels are at ±10%.
NSpecifications are subject to change without notice.
2Extron MVC 121 Mic/Line Mixer and Volume Controller • Specifications