SmartLink-III™ Series

SmartLink-III™ Series

SL-1953x-x

4 Channel Cabin Temperature Readout Module

│Specification│Pinouts│Installation Note│

Features and Functions

SmartLink-III™ System Interface
Lightweight, modular design
Temperature averaging and reporting every 5 seconds on discrete output ports and/or SmartLink-III™ bus
Self-calibrating and self-compensating Digital Temperature Sensor
High accuracy of temperature measurements
Supports up to (4) independent temperature zones
All (4) temperature zones read and reported simultaneously
Redundancy design for high reliability

Description

The SL-1953 4-Channel Cabin Temperature Readout Module provides temperature sensing and averaging at 5-second intervals for up to four (4) separate control zones within the aircraft. The unit uses (1) digital, 3-wire thermometer sensor per control zone. The temperature sensors are accurate and respond quickly to changing temperatures within the cabin. The module itself is compact and lightweight and interfaces with the SmartLink-III™ Cabin Management System.

Application

Temperature readout to a discrete-driven display
Temperature readout to a display or switch panel connected to the SmartLink-III™ Cabin Management System

Mechanical Specification

All dimensions are in Inch
Material 5052-H32 Aluminum
Chem-Film Finish
Weight 10 OZ

Electrical Specification

Operating Voltage: 17 ~ 32 VDC
Operating Current: 0.2 ~ 0.8 Amps
Operating Temperature: -10 ~ +55 ºC
System Interface: SmartLink-III Compliant
Connector: D-Sub Series with #4-40 Jackscrew ('P' suffix with Positronic's V3 Tab)
Temperature Measurement Channel: 4
Temperature Measurement Sensor: DPI P/N 530-501
Temperature Measurement Range: -52°F to 202°F in 1°F increments
Temperature Measurement Duration: 5 Second Average
Temperature Measurement Accuracy: < 1°F
Discrete Temp Output Channel: 2
Discrete Temp Output Format: 8 Bit Binary Active Ground Logic, 100mA Max. Sink Current

Connector Pinouts

J2 D-Sub 50 pin Plug (Male)

PIN	FUNCTION	PIN	FUNCTION	PIN	FUNCTION
1	BIT [0] DISCRETE OUTPUT, CH.1	18	BIT [1] DISCRETE OUTPUT, CH.1	34	BIT [2] DISCRETE OUTPUT, CH.1
2	BIT [3] DISCRETE OUTPUT, CH.1	19	BIT [4] DISCRETE OUTPUT, CH.1	35	BIT [5] DISCRETE OUTPUT, CH.1
3	BIT [6] DISCRETE OUTPUT, CH.1	20	BIT [7] DISCRETE OUTPUT, CH.1	36	DISCRETE RETURN (GND)
4	GND	21	GND	37	DISCRETE RETURN (GND)
5	BIT [0] DISCRETE OUTPUT, CH.2	22	BIT [1] DISCRETE OUTPUT, CH.2	38	BIT [2] DISCRETE OUTPUT, CH.2
6	BIT [3] DISCRETE OUTPUT, CH.2	23	BIT [4] DISCRETE OUTPUT, CH.2	39	BIT [5] DISCRETE OUTPUT, CH.2
7	BIT [6] DISCRETE OUTPUT, CH.2	24	BIT [7] DISCRETE OUTPUT, CH.2	40	N.C.
8	N.C.	25	RESERVED	41	RESERVED
9	SENSOR POWER, CH.1	26	SENSOR DATA, CH.1	42	SENSOR GROUND, CH.2
10	SENSOR GROUND, CH.1	27	SENSOR DATA, CH.2	43	SENSOR POWER, CH.2
11	DEVICE I.D. [8 HEX]	28	DEVICE I.D. [1 HEX]	44	DEVICE I.D. [4 HEX]
12	DEVICE I.D. [2 HEX]	29	FRAME GROUND	45	FRAME GROUND
13	FRAME GROUND	30	GND	46	POWER RETURN (GND)
14	SL-SHIELD (GND)	31	SL - DATA HI	47	DEVICE I.D. RETURN (GND)
15	SL - DATA LO	32	SENSOR DATA, CH.4	48	SENSOR GROUND, CH.4
16	SENSOR DATA, CH.3	33	SENSOR POWER, CH.4	49	SENSOR GROUND, CH.3
17	POWER INPUT (+28VDC)	–	–	50	SENSOR POWER, CH.3

Installation Notes:

Frame Ground: Chassis Ground connection using 20AWG hookup wire minimum.
Power Input and Power Return: Power Pins
SL3 – HI/LO/SHLD: SmartLink-III™ bus connection, using 22AWG (minimum) Shielded Twisted Pair cable with single ended shield terminated to SHLD pin.