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SC532A 9-Pin Peripheral to 9-Pin RS232 Interface 

3.  Specifications 

Input voltage 
(to POWER jack) 

A)  5 Volt Peripherals require 6 

 17 VDC 

B)  12 Volt Peripherals require 12 

 17 VDC 

Barrel connector: inner bore (+), outer sleeve (

(factory 120 V AC adapter supplies 12 VDC 
unregulated @ 1A)  

Output voltages  

+5 VDC ± 0.075 VDC on PERIPHERAL connector 
pin 1 and 6 

 17 VDC on PERIPHERAL connector 

pin 8, depending on AC adapter in use (12 VDC 
unregulated with factory AC adapter) 

Current available to 
5 V peripheral  

+5 VDC @ 120 mA maximum at 25

°

derate 12 mA for each AC adapter Volt above 9 VDC
derate 1 mA for each 

°

C above 25

°

Current available to  
12 V peripheral 

Factory provided AC adapter supplies unregulated  
12 VDC @ 1 Amp 

RS232 output levels 

+10 VDC ± 1 VDC  

10 VDC ± 1 VDC  

Maximum output impedance = 1100 

Ω

 

RS232 input levels  

± 30 V maximum 
Low threshold 

 0.8 V 

High threshold 

 3.5 V 

Input impedance at least 3000 

Ω

 

9-pin inputs 

Low 

 1 V; High 

 3.5 V 

9-pin outputs 

Low 

 0.5 V; High 

 3.5 V 

Current drain 

5 mA typical quiescent 
10 mA maximum quiescent 

Port Configuration  

PC:  9-pin D-Subminiature Female configured as DCE. 

Peripheral:  9-pin D-Subminiature Female connects to 
peripheral through SC12 Two Peripheral Connector 
Cable supplied with the SC532A. 

Dimensions  

4 5/8 x 1 3/4 x 1 inches (allow up to 1 1/4 inches 
extra on 1 3/4 dimension for power connector strain 
relief) 

Weight 

1 1/4 pounds with AC adapter 

 

Summary of Contents for Campbell Scientific SC532A

Page 1: ...SC532A 9 Pin Peripheral to RS232 Interface Revision 4 09 C o p y r i g h t 1 9 9 8 2 0 0 9 C a m p b e l l S c i e n t i f i c I n c...

Page 2: ...g in countries served by Campbell Scientific Inc directly Affiliate companies handle repairs for customers within their territories Please visit www campbellsci com to determine which Campbell Scienti...

Page 3: ...s 3 5 Operation 3 6 Portable Battery Power 4 Appendices A Pin Description A 1 B Schematic B 1 C Component Location C 1 Figures 1 SC532A Case Top 1 2 Connection Block Diagram 3 3 DC Cable for 12 VDC Da...

Page 4: ...This is a blank page...

Page 5: ...n be opened by twisting a 1 8 inch 3 mm standard screwdriver in the four seam slots 2 Physical Description An SC12 and a 10873 cable are shipped with the SC532A The SC12 cable connects the SC532A 9 pi...

Page 6: ...ach C above 25 C Current available to 12 V peripheral Factory provided AC adapter supplies unregulated 12 VDC 1 Amp RS232 output levels 10 VDC 1 VDC 10 VDC 1 VDC Maximum output impedance 1100 RS232 in...

Page 7: ...o a PC s 9 pin RS232 COM port via SC532A and data cables 5 Operation A CSI peripheral s logic levels 0V low 5V high are converted to RS232 levels 10V and 10V respectively by the SC532A The SC532A supp...

Page 8: ...and BLACK wire to power ground terminal The correct barrel connector polarity is on the inner bore and on the outer sleeve If using a separate 12 Vdc power supply a common ground must be shared with t...

Page 9: ...um Operating Current Requirements 5 VDC Peripherals Maximum Current MD9 Multidrop Interface 90 mA SM4M 16M Storage Module 100 mA SM192 716 Storage Module 20 mA SM64 Storage Module 30 mA CSM1 Card Stor...

Page 10: ...SC532A 9 Pin Peripheral to 9 Pin RS232 Interface 6 This is a blank page...

Page 11: ...llowing table TABLE A 1 SC532A Pin Descriptions PIN Pin number I Signal Into the SC532A 0 Signal Out of the SC532A PC CONNECTOR 9 PIN D SUB FEMALE PIN I O DESCRIPTION 1 I not used 2 O RX 3 I TX 4 DTR...

Page 12: ...trol the peripheral s PE lines 20 DTR O Data Terminal Ready The computer uses this line to control the peripheral s ME and CLK HS line 22 RING I Ring Indicator Raised to get the attention of the compu...

Page 13: ...Appendix B Schematic B 1...

Page 14: ...This is a blank page...

Page 15: ...Appendix C Component Location C 1...

Page 16: ...This is a blank page...

Page 17: ......

Page 18: ...a Corp CSC 11564 149th Street NW Edmonton Alberta T5M 1W7 CANADA www campbellsci ca dataloggers campbellsci ca Campbell Scientific Centro Caribe S A CSCC 300 N Cementerio Edificio Breller Santo Doming...

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