Appendix A.
Intellicom Specifications

Appendix A provides the specifications for the Intellicom and describes the conformal coating.

A.1 Electrical and Mechanical Specifications

Figure A-1 shows the mechanical dimensions for the Intellicom board.

Figure A-1. Intellicom Board Dimensions

Table A-1 lists the electrical, mechanical, and environmental specifications for the Intellicom board.

Table A-1. Intellicom Board Specifications 

Parameter	Specification
Board Size (with backup battery board)	4.30" × 4.71" × 0.80" (109 mm × 120 mm × 20.3 mm)
Enclosure Size	5.7" × 6.7" × 2.0" (145 mm × 170 mm × 51 mm)
Display	Supertwist 4 × 20 LCD with backlighting
Keypad	2 × 6 domed tactile keypad with customizable legend
Connectors	15 screw terminals, 1 RJ-12, and 1 RJ-45
Operating Temperature	0°C to +50°C
Storage Temperature	-20°C to +60°C
Humidity	5% to 95%, noncondensing
Input Voltage	9 V to 40 V DC
Current	100 mA @ 24 VDC typical (backlighting on)
Ethernet Interface	Direct connection to 10Base-T Ethernet networks via RJ-45 connection
Digital Inputs	4 protected, 0 V to 5 V DC (protection from -36 V to + 36 VDC max.)
Digital Outputs	4 open collector, sinking (200 mA, 40 V DC max.)
Speaker Output	Software-adjustable volume and frequency
Microprocessor	Rabbit 2000TM
Clock	18.432 MHz
SRAM	128K, surface mount (supports 32K-512K)
Flash EPROM	256K for program and data plus 256K for file storage (supports 128K-512K)
Timers	7 eight-bit timers available
Serial Ports	1 RS-232 (3-wire), 1 RS-485, and 1 RS-232 programming port RS-232 (3-wire) and RS-485 may be reconfigured for 1 RS-232 (5-wire) or 2 RS-232 (3-wire)
Serial Rate	Maximum asynchronous 115,200 bps for both serial ports
Watchdog/Supervisor	Yes
Time/Date Clock	Yes
Backup Battery	On backup battery board, 1000 mA·h, BR2477A

A.2 Conformal Coating

The areas around the crystal oscillator and the battery-backup circuit on the Intellicom have had the Dow Corning silicone-based 1-2620 conformal coating applied. The conformally coated areas are shown in Figure A-2. The conformal coating protects these high-impedance circuits from the effects of moisture and contaiminants over time.

Figure A-2. Intellicom Areas Receiving Conformal Coating

Any components in the conformally coated area may be replaced using standard soldering procedures for surface-mounted components. A new conformal coating should then be applied to offer continuing protection against the effects of moisture and contaminants.

NOTE	For more information on conformal coatings, refer to Technical Note 303, Conformal Coatings.

A.3 Jumper Configurations

Figure A-3 shows the header locations used to configure the various Intellicom options via jumpers.

Figure A-3. Location of Intellicom Configurable Positions

Table A-2 lists the configuration options.

Table A-2. Intellicom Jumper Configurations

Header	Description	Pins Connected		Factory Default
JP1	SRAM Size	1-2	128K	×
		2-3	512K
		None	32K
JP2	Flash 1 Memory Size (U5)	1-2	128K/256K	×
		2-3	512K
JP3	Flash 2 Memory Size (U6)	1-2	128K/256K	×
		2-3	512K
JP4	Digital Input Pull-Up/Pull-Down Resistors	1-2	Pulled up	×
		2-3	Pulled down
JP5	Flash Memory Bank Select	1-2	Normal Mode	×
		2-3	Bank Mode
JP6	RS-485 Bias and Termination Resistors	1-2 5-6	Bias and termination resistors connected	×
		None	Bias and termination resistors not connected
JP7	RS-232/RS-485 Select	1-3 2-4	RS-232 TxB/RxB (also TxC/RxC or RTS/CTS) signals on J7
		3-5 4-6	RS-232 TxC/RxC and RS-485 signals on J7	×
		1-5 2-6	RS-232 TxB/RxB signals on J5 (U10 must be removed)

NOTE	Only headers JP6 and JP7 use actual jumpers. The other connections are made using 0 W surface-mounted resistors.