Patton electronic 1012B user manual EIA RS-232, ITU/CCITT

		APPENDIX A
		SPECIFICATIONS
Transmission Format:		Asynchronous, full duplex, half duplex
Transmission Line:		Two unconditioned twisted pair AWG 19–26
Interfaces:		EIA RS-232, ITU/CCITT V.24
Data Rates:		0–38.4 kbps
Isolation:		Minimum 1500 V RMS via custom
		transformers
Surge Protection:		600W power dissipation at 1 mS
Factory Switch Setting:		DCE (transmits from RS-232 on pin 3)
Control Signals:		CTS follows RTS from the terminal (DTE);
		DSR follows DTR from the terminal (DTE);
		CD indicates reception of carrier
RTS/CTS Delay:		Approximately 30 mS
Connectors:		DB-25 male or female on RS-232 side; RJ-
		11, RJ-45 or terminal block with strain relief
		on line side
Power Supply:		No external power required; uses power
		from EIA data and control signals
Temperature Range:		0–60°C (32–140°F)
Altitude:		0–15,000 feet (0–4,500 meters)
Humidity:		5 to 95% non-condensing
Weight:		2 oz. (60 grams)
Dimensions:		3.54L x 2.09W x 0.79H in.
		(90L x 53W x 20H mm)
	Distance Table (miles)
	Data			Wire Gauge
	Rate
			19		24	26
	1,200 to 38,400		6.0		4.0	2.5

APPENDIX B

RS-232C PIN CONFIGURATIONS

DIRECTION	"DCE" STANDARD SETTING			DIRECTION
		1	- (FG) Frame Ground
		2	- (TD) Transmit Data	To Model 1012B
		3	- (RD) Receive Data	From Model 1012B
		4	- (RTS) Request to Send	To Model 1012B
		5	- (CTS) Clear to Send	From Model 1012B
		6	- (DSR) Data Set Ready	From Model 1012B
To Model 1012B	Data Term. Ready (DTR) - 20	7	- (SG) Signal Ground
		8	- (CD) Carrier Detect	From Model 1012B
		9	- External Power	To Model 1012B

DIRECTION	"DTE" STANDARD SETTING		DIRECTION
		1- (FG) Frame Ground
		2- (TD) Transmit Data	From Model 1012B
		3- (RD) Receive Data	To Model 1012B
		4- (RTS) Request to Send	From Model 1012B
		5- (CTS) Clear to Send	To Model 1012B
		6- (DSR) Data Set Ready	To Model 1012B
From Model 1012B	Data Term. Ready (DTR) - 20	7- (SG) Signal Ground
		8- (CD) Carrier Detect	To Model 1012B
		9- External Power	To Model 1012B

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