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Differentiate between RS 232 and RS 485.
written 6.2 years ago by gravatar for hetalgosavi hetalgosavi • 1.6k modified 4.4 years ago by gravatar for prashantsaini prashantsaini • 0
embedded systems
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written 6.2 years ago by gravatar for hetalgosavi hetalgosavi • 1.6k
Parameters RS 232 RS 485
Mode of operation Single ended Differential
Total number of drivers and receivers on 1 line 1 driver and 1 receiver 32 drivers and 32 receivers
Maximum cable length 50 feet 4000 feet
Speed 115.2 kbaud/sec at 0.25 m 50 mbps at 50 feet
Logic levels- Logic 1 Logic 0 -3 to -25 V +3 to +25 V 0 to 12 V -7 to 0 V
Input resistance of receiver 3 kΩ - 7 kΩ ≥ 12 kΩ
Slew rate (max) 30 V/usec N/A
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