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Summary of Contents for Campbell SDS-122
- Page 1 SDS-122 Serial Data Switch 5/99 C o p y r i g h t © 1 9 9 6 - 1 9 9 9 C a m p b e l l S c i e n t i f i c ,...
- Page 2 Warranty and Assistance The SDS-122 SERIAL DATA SWITCH is warranted by CAMPBELL SCIENTIFIC, INC. to be free from defects in materials and workmanship under normal use and service for twelve (12) months from date of shipment unless specified otherwise. Batteries have no warranty. CAMPBELL SCIENTIFIC, INC.'s obligation under this warranty is limited to repairing or...
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Page 3: Table Of Contents
4. Pin Positions for Switched RS232 Port ‘A’: 25-way Female ‘D’ Type Connector ......3 5. Default Jumper Positions on Circuit Board ...................6 6. SDS-122 Settings for COM200 and SRM-6A (RAD Short Haul Modem)..........7 LIST OF TABLES 1. Current Consumption in Various Modes/Communication Activity ............2... - Page 4 This is a blank page.
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Page 5: Introduction
SDS-122 SERIAL DATA SWITCH The SDS-122 is a configurable two-way serial data switch which will allow two modem devices to be connected to a datalogger simultaneously, so allowing both remote and local interrogation of the datalogger to be carried out. It can support both DTE and DCE devices without the need for a null modem cable, and can operate either in manual or automatic mode. -
Page 6: Operational
<100 A communication activity. (This is the one-way, print- enabled RAD-SRM mode.) Normal Operating Temperature Range: -25 C to +50 C For extended temperature range requirements please contact Campbell Scientific. 2.3 PORT CONFIGURATION/CONNECTIONS ABBREVIATION The SDS-122 has one datalogger port, one switched datalogger port, a 25-way switched RS232 port and a control port. -
Page 7: Pin Positions For Switched Datalogger Port 'B': 9-Way Female 'D' Type Connector
SDS-122 SERIAL DATA SWITCH The switched datalogger port (marked ‘PORT Switched Datalogger Port B B’ in Figure 1) is a 9-way female ‘D’ type connector, having the following pin configuration: ABBREVIATION RING SDE/PE CLK/HS Not connected FIGURE 3. Pin Positions for Switched Datalogger Port ‘B’: 9-way Female ‘D’... -
Page 8: Installation
3. INSTALLATION discharge any static by touching the case or metal shell of the 'D' type connectors You should install the SDS-122 in a dry, non- on the circuit board. condensing environment. The ENC12/14 datalogger enclosure, available from... -
Page 9: Jumper Configuration
Port A. The SDS-122, as supplied, has its Internal protection devices will cause a jumpers set to this default configuration. -
Page 10: Default Jumper Positions On Circuit Board
SDS-122 SERIAL DATA SWITCH C109 R123 R147 R124 R122 R121 R142 CONN1 R130 C108 R149 C101 R126 R141 R117 R118 CONN3 R120 R119 R151 C110 OPEN PL56 R145 ISOLATED R148 R144 PL50 SW1-5 CLOSED OPEN PL51 POWERED C111 C112 CONN2... -
Page 11: Sds-122 Settings For Com200 And Srm-6A (Rad Short Haul Modem)
R118 CONN3 R120 R119 R151 C110 OPEN PL56 R145 ISOLATED R148 R144 PL50 SW1-5 CLOSED OPEN PL51 POWERED C111 C112 CONN2 C107 CONN4 C113 C106 CSL20026 ISS 1 FIGURE 6. SDS-122 Settings for COM200 and SRM-6A (RAD Short Haul Modem) -
Page 12: Default Jumper Settings
Not fitted This jumper works in combination with jumper PL42. When jumper PL43 is fitted and jumper PL42 is also fitted , the SDS-122 will revert to port B when the ME line goes low. When PL43 is not fitted, but PL42 is fitted, the unit will default to port A when the ME line goes low. - Page 13 This is a blank page.
- Page 14 Campbell Scientific Companies Campbell Scientific, Inc. (CSI) 815 West 1800 North Logan, Utah 84321 UNITED STATES www.campbellsci.com info@campbellsci.com Campbell Scientific Africa Pty. Ltd. (CSAf) PO Box 2450 Somerset West 7129 SOUTH AFRICA www.csafrica.co.za sales@csafrica.co.za Campbell Scientific Australia Pty. Ltd. (CSA)