Specifications

Alto 818 Installation and Operation
3-16 P/N 66109074001 Rev. D
3.7 S-NET POWER REQUIREMENTS
One or more power supplies are required to provide DC power to the S-Net devices. The specific
number of power supplies will depend on the number of devices and the overall length of the S-
Net cable. Table 3-7 provides a list of nominal power as a guideline to determine power needed.
Table 3-7: S-Net Device Supply Requirements
Device
Minimum Voltage
Required
Po wer Required
S-Net IR
Drop/1000 Ft
DR 4204 16 VDC 1.96 Watts 0.84 Volts
DR 4205 16 VDC 1.96 Watts 0.84 Volts
DR 4208 16 VDC 4.8 Watts 2.4 Volts
DR 4226 16 VDC 9.6 Watts 4.8 Volts
DR 4238 16 VDC 12 Watts 6 Volts
VIP2 16 VDC 0.98 Watts 0.42 Volts
Power supplies may be placed in-line at the controller PCA or at intervals along the S-Net cable.
See the power supply manual for installation details.