Overview
The SC929 is a cable interface between a data logger and a computer. One end of the cable connects to the data logger's CS I/O port. The other end connects directly to the 9-pin serial port of a computer. The SC929 does not provide optical isolation, so it should only be used with laptop computers running from internal batteries (not connected to ac power).
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Detailed Description
The SC929 cable connects the data logger's CS I/O port directly to the 9-pin serial port of a battery-operated laptop. It converts the CMOS logic levels of the data logger to the RS-232 logic levels of the laptop. The SC929 does not provide electrical isolation, so it should only be used with laptop computers running from internal batteries (not connected to ac power).
Communications with a data logger over CS I/O utilize Modem Enable mode (ComME). It does not provide Synchronous Device Communication (SDC).
Specifications
| Typical Current Consumption | Draws 8 mA from the data logger |
| Maximum Baud Rate | 57600 |
| Operating Temperature Range | -25° to +50°C |
| Connections |
|
| Cable Length | 198.1 cm (78.0 in.) |
| Weight | 181 g (6 oz) |
Compatibility
Note: The following shows notable compatibility information. It is not a comprehensive list of all compatible or incompatible products.
Data Loggers
| Product | Compatible | Note |
|---|---|---|
| 21X (retired) | ||
| CR10 (retired) | ||
| CR1000 (retired) | ||
| CR10X (retired) | ||
| CR200X (retired) | ||
| CR206X (retired) | ||
| CR211X (retired) | ||
| CR216X (retired) | ||
| CR23X (retired) | ||
| CR295X (retired) | ||
| CR3000 (retired) | ||
| CR500 (retired) | ||
| CR5000 (retired) | ||
| CR510 (retired) | ||
| CR800 (retired) | ||
| CR850 (retired) | ||
| CR9000 (retired) | ||
| CR9000X (retired) |
Documents
Frequently Asked Questions
Number of FAQs related to SC929: 3
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The SC929 has been functionally replaced by the SC32B. While the SC929 is still available, the SC32B has increased capability at a reduced cost. See the table for a comparison:
SC929
SC32B
Optically Isolated
No
Yes
Maximum Baud
9600
115200
Current Draw
8 mA
Active < 200 µA
Cables are an additional comparison point for these two products:
- The SC929 cable directly connects the PC to the data logger’s CS I/O port.
- The SC32B interface typically uses the 10873 serial cable to connect to the PC and the SC12 cable to connect to the CS I/O port. Both of these cables are shipped with the SC32B.
-
See the table for a detailed comparison:
17394
USB-serial cableSC32B
SC929
SC-USB
Useful for Connecting
PC USB port to data logger RS- 232 port
Data logger CS I/O port to laptop COM port
Data logger CS I/O port to laptop COM port
Data logger CS I/O port to PC USB port
Connectors
USB A male – 9-pin male
9-pin male – 9-pin female
9-pin male – 9-pin female
USB B female – 9-pin male
Length
6 ft
3 in.
6 ft
1.6 in. Power Consumption
N/A
Active <200 a="" --200--="">
8 mA continuous
Active <20 ma="" --20--="">
Optically Isolated
No
Yes
No
Yes
Operating Temperature
N/A
-25° to +50°C
-25° to +50°C
-25° to +50°C
Maximum Data Transfer Rate
1 Mbps USB
115200 bps
9600 bps
1 Mbps USB
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