Polaroid ST-8E, ST-9E, ST-7E manual Appendix a Connector ad Cables, Appendix a Connector Pinouts

Appendix A - Connector Pinouts

A.Appendix A - Connector ad Cables

This appendix describes the various connectors and cables used with the ST-7E/8E/9E.

A.1. Appendix A - Connector Pinouts

Tables A1 and A2 below show the pin-outs of the Telescope and Power connectors on the ST- 7E/8E/9E.

	Pin Number	Function
1		Chassis Ground
2		CFW-8 Pulse/AO-7 Data Out
3		Plus X (Active Low Open Drain)9
4		Plus Y (Active Low Open Drain)
5		Signal Ground
6		Minus X (Active Low Open Drain)
7		Minus Y (Active LowOpen Drain)
8		+12 Volts Out (100mA max)
9		+5 Volts Out (300 mA max)
	Shell	Chassis Ground
	Table A1 Telescope Connector
	Pin Number	Function
	6, Shell	Earth Ground
	5	DC Ground
	4	-12V DC, 100mA
	3	No contact
	2	+12V DC, 500mA
	1	+5V DC, 2A

Table A2 Power Connector

+12VDC on outside

Ground in Center

Mating plug is 5.5mm

outside and 2.1mm inside

Figure A1 - Cooling Booster DC Power Jack

A.2. SBIG Tracking Interface Cable (TIC-78)

Many of the newer telescopes have a phone-jack connector on the drive corrector for connecting directly to the ST-7E/8E/9E Camera's Telescope Port. These include the Celestron Ultima, Losmandy CG11 and Meade LX-200. You can interface these telescopes to the

9The Open Drain outputs can sink 100 mA maximum

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