CB 1241 RS485

CB 1241 RS485 , Communication Signal Board – 1 Port RS485

Model no

CB 1241 RS485

Article No

H7 241-1CH30-1XB0

Description

Communication Signal Board – 1 Port RS485

WxHxD（mm）

38×62×21 mm

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Product parameters Wiring diagram Relevant information

Specification parameters	Model no	CB 1241 RS485
	Article No	H7 241-1CH30-1XB0

Conventional norm	Dimensions WxHxD（mm）	38×62×21mm
	Weight	40 g
	Type	RS485(2-wire half-duplex)
	Number of Ports	1
	Common-mode voltage range	-7 V to +12 V, 1 second; 3 Vrms continuous
	Transmitter differential output voltage	Min 2V when RL = 100Ω; min 1.5V when RL = 54Ω.
	Termination and biasing	10k resistor from B to +5V 10k resistor from A to GND
	Optional terminals	Short pin TB to pin T/RB; effective termination impedance is 127Ω;connect to RS485 pin 3. Short pin TA to pin T/RA; effective termination impedance is 127Ω;connect to RS485 pin 4.
	Receiver input impedance	Minimum 5.4 kΩ, including termination
	Receiver Threshold/Sensitivity	Minimum +/- 0.2V, typical hysteresis 60 mV
	Isolation
	RS485 Signal and Chassis Ground	707 V DC (Type Test)
	RS485 signal and CPU logiccommon terminal	707 V DC (Type Test)
	Cable length, shielding	Maximum 1000 m
	Baud rate	300 baud, 600 baud, 1.2 Kb, 2.4 Kb, 4.8 Kb, 9.6 Kb (default),19.2 Kb, 38.4 Kb, 57.6 Kb, 76.8 Kb, 115.2 Kb
	Paritycheck	None (default), Even, Odd, Mark (parity bit always set to 1), Space (parity bit always set to 0)
	Number of stop bits	1 (default), 2
	Flowcontrol	Not supported
	Waiting time	0-65535ms
	Power loss	1W
	Max current consumption (SM bus)	200mA

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