User Manual

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 1/10 amp 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
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
Size & Weight: 10.5" deep, 2.0" high, 8.5" wide, 4.9 pounds
Doug Fleenor Design, Inc.
396 Corbett Canyon Road
Arroyo Grande, CA 93420
[phone] voice and FAX
(888) 4-DMX512 toll free
Doc# manual 621E-WALL.wpd web site: http://www.dfd.com