Appendix B Specifications, Dce Dte | Patton electronic 1010A

APPENDIX B

SPECIFICATIONS

Transmission Format: Asynchronous, full duplex

Transmission Line: Two unconditioned twisted pair 19 - 26 AWG

Range: (See table below)

Interfaces: EIA RS-232, CCITT V.24

Data Rates: 50 - 115.2 Kbps

Isolation: Minimum 1500 V RMS via custom transformers

3.0 CONFIGURATION

The Model 1010A is designed to be easy to use. There are no internal jumpers or DIP switches to set, so there is no need to open the case to configure the unit (you may need to open the case for wire connection—refer to section 4.0). The only configuration necessary for operation is proper setting of the external DCE/DTE switch.

The figure below shows the location of the DCE/DTE switch on the PC board, as well as the location of the terminal block and surge suppressors.

Surge Protection: 600W power dissipation at 1 mS; component response time of 1 pS; installed response time of 2 µs

Dimensions: 2.66" x 2.10" x 0.73"

Factory Switch Setting: DCE (transmits from RS-232 on pin 3)

Control Signals: DSR and DCD follow DTR from the terminal (DTE); CTS follows RTS from the terminal (DTE)

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: None required; uses power from EIA data and control signals

DCE/DTE

Switch

DCE

DTE

Surge

Suppressors

Transformers

Terminal

Block

Temperature Range: 0-60°C(32-140°F)

Altitude: 0-15,000 feet

Humidity: Up to 95% non-condensing

Weight: 2 oz.

Model 1010A Distance Table (miles)

Data		Wire Gauge
Rate	19		24	26
115,200	0.6		0.45	0.3
57,600	2.0		1.5	1.0
38,400	2.4		1.8	1.2
19,200	2.6		2.0	1.2
9,600	4.0		2.5	1.6
4,800	5.0		3.5	2.2
2,400	6.8		4.7	3.2
1,200	8.5		5.7	3.8

3.1 SETTING THE DTE/DCE SWITCH

For your convenience, the Model 1010A has an externally accessible DCE/DTE switch (see figure below). If the device connected to the Model 1010A is a modem or multiplexer (or is wired like one), set the switch to "DTE". This setting causes the Model 1010A to behave like Data Terminal Equipment and transmit data on pin 2.

If the device connected to the Model 1010A is a PC, terminal or host computer (or is wired like one), set the switch to "DCE". This setting causes the Model 1010A to behave like Data Communications Equipment and transmit data on pin 3.

DCE		DTE
DCE		DTE