Doug Fleenor Design 521E - Manual (Page 2)

Models 221E - 621E DMX512 Combine Units
Specifications:
Baud rate: 250 Kilobaud
Input circuit: EIA-485 receiver protected by two self resetting fuses
120 ohm input terminator protected by a self resetting fuse
Four transorb diodes: two on +Data, two on -Data
Input signal: 0.5 volts minimum, 12 volts maximum
Input can withstand up to 240 volts without damage, transients up to 5KV
Output circuit: "Slew rate limited" EIA-485 driver protected by two self-resetting fuses
(Slew rate limited outputs reduce the errors caused by unterminated lines)
Output signal: EIA-485 driver yields an approximate 3 volt signal into 120 Ohms
Outputs can withstand up to 12 volts without damage, transients up to 5KV
Connectors: 3 conductor pluggable terminal blocks, 5 pin XLR, or 3 pin XLR
Isolation: 2500 volt optical coupler, 5000 volt split bobbin transformer
Power input: 100 - 120 volts or 220 - 240 volts, 50/60 hertz, 0.1 amp (24 watts)
Color: Silver hammertone with black front and rear panels
Size & Weight: 11.25" deep, 1.74" high, 8.25" wide, 4.9 pounds (19" rack adapter available)
Wall Mount 2" deep, 8.5" high, 10.5" wide, 5 pounds
Mounting Hole Locations 6" Vertical 9.5" Horizontal
Doug Fleenor Design, Inc.
396 Corbett Canyon Road
Arroyo Grande, CA 93420
(805) 481-9599 voice and FAX
(888) 4-DMX512 toll free
Doc# manual 621E.wpd
web site: http://www.dfd.com