Black Box 232/CL-E - Switch Configurations; Switch SWA; Switch SWB

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RS-232 ↔ CURRENT LOOP INTERFACE CONVERTER
4.3 Switch SWA
Switch SWA controls the Current Loop Configuration. The CL050 is shipped with
the SWA in a “Full-Duplex, Passive” configuration.
Note: 0 indicates “OPEN” and 1 indicates “CLOSED.”
SW1 SW2 SW3 SW4 SW5 SW6 SW7 SW8 SW9 SW10 Loop Configuration
0101001 01 0 Full-Duplex, Passive
1010110 10 1 Full-Duplex, Active
0101010 10 1 Full-Duplex, Passive
Receive/Active Transmit
1010101 01 0 Full-Duplex, Active
Receive/Passive Transmit
0101001 01 0 Half-Duplex, Passive
(2-wire operation)
0100111 01 0 Half-Duplex, Active
(2-wire operation)
4.4 Switch SWB
Switch SWB controls loop current (20/30/60 mA). The CL050 is shipped with the
SWB in a “20mA receive; 20mA transmit” configuration.
Note: 0 indicates “OPEN” and 1 indicates “CLOSED.”
SW1 SW2 SW3 SW4 Loop Current
0 0 0 0 20mA receive; 20mA transmit loops
1 1 1 1 60mA receive; 60mA transmit loops
1 1 0 0 60mA receive; 20mA transmit loops
0 0 1 1 20mA receive; 60mA transmit loops
1 0 1 0 30mA receive; 30mA transmit loops