Omega Vehicle Security LDN-PS manual Applications

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7.0: Applications (continued)

PSIM-AC PSIM-DCPSIM-5V

The PSIM-5V is powering the whole Orbit Network. PSIM-5V volt drop is calculated using 12 as the total number of Orbit modules; the RS232IM is included in this number.

Total Voltage drop = PSIM-5V + modules (6 off) + Cable 1 + Modules (6 off)

=(2 x 12 x [3+1]) + 0.04 (1+2+3+4+5+6+7+8+9+10+11+12)+ (15.2 x 6) + 0.04 (1+2+3+4+5+6)

=96 + 3.12 + 91.2 + 0.84

=191 mV

Then approximate voltage at end of network	=	nominal supply voltage - calculated volt drop
	=	5.25	- 0.191
	= 5.06		V

i.e. greater than 4.75 Vdc the minimum working voltage. In this example the input supply to the PSIM-5V could be reduced to 5.1 V (the Orbit nominal value).


LDN-PS		23
LDN-PS		23	M-3340/1206

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Contents LDN-PS OMEGAnet On-Line Service Internet e-mail Info@omega.com Servicing North America Servicing EuropeDimensions and Mechanical Installation IndexIntroduction IntroductionSafety Information Service SafetySafety Information General Information Psim VariantsGeneral Information Psim General LayoutPsim used in a small network configuration Psim Schematic and Pin-out Psim Schematic and Pin-out PSIM-ACPSIM-DCPSIM-5V Dimensions and Mechanical InstallationPSIM-ACPSIM-DCPSIM-5V Power SupplyDimensions and Mechanical Installation PSIM-ACPSIM-DCPSIM-5V PsimSpecification InputDC Output Reverse connection PSIM-AC PSIM-DC PSIM-5V Environmental ApprovalsApplications Voltage Drop Estimation Orbit Module with T-CON Standard 2m CommsVolt drop From no load output = 5.3 x N = 2 x N x L+1 mVApplication 1 Basic Small Network Connection Applications Calculation for V1 volt drop Calculation for V2 volt dropPSIM-AC PSIM-DCPSIM-5V Applications Application 4 Modules located a long distance from computer Application 5 Use with RS232 Interface Module RS232IM WARRANTY/DISCLAIMER OMEGA…Of Course