Paralan iS550 User Manual
Page 37

Page 37
6. APPENDICES
A. Specifications 
 
I.
Environmental: 
a. Relative Humidity: 10-90% non-condensing 
b. Operating Temperature: 5 - 40°C 
c. Storage Temperature: 0 - 85°C 
d. Airflow (for iS521 only): 10 cubic feet per minute 
 
II.
Power Requirements: 
a. iS520 (Stand-Alone Box version). The iS520 is a stand-alone unit in 
an enclosure with a power supply designed to plug into the line voltage 
outlet of 100-240 VAC, 50/60 Hz, 1.7 A. A replacement power supply 
can be ordered as Paralan part number 10641-1. 
• Input Voltage 
100 - 240 VAC
• Input Current
1.7 A AC
• Input Frequency
50 - 60 Hz
b. iS550 (Rack Mountable version)
• Input Voltage
100 - 240 VAC
• Input Current
1.2 A AC
• Input Frequency
50 - 60 Hz
c. iS521 (Board version). The iS521 board level unit requires a source of
5 Vdc ± 5%, 100 mv max ripple, 5 Amps (max). This current is for 
the board only. Installations using the iS521 will pull additional 
current if required to power external terminators. Total typical current 
draw for external terminators would be 350 mA. The iS521 is current 
limited to 1.67 Amps to the external terminators. 
• Voltage 
5 Vdc ± 5% 
100 millivolt max ripple 
• Current
5 AMP DC (max)
• 4-pin Power Connector pin-out
Pin
Description
 1 No connect 
 2 Ground 
 3 Ground 
 4 +5 Volt input 
III.
Agency Approvals: UL, CSA, TUV/VDE, CE (Contact Paralan to request
 documentation). 
 
 
 
 
