Ademco 685 - Revision history

Jeffa: /* Resources */ added heading so Moss monitor shows in menu

2016-09-17T01:05:22Z

‎Resources: added heading so Moss monitor shows in menu

Jeffa: /* Resources */

2016-09-17T01:03:50Z

‎Resources

Jeffa: Add CCS 2810 link and Resources section

2016-09-08T23:22:41Z

Add CCS 2810 link and Resources section

Jeffa: Add inner cover

2016-08-01T18:29:46Z

Add inner cover

Jeffa: /* Inside */

2016-08-01T18:17:10Z

‎Inside

Jeffa: /* Inside */ slot spacing

2016-08-01T18:16:42Z

‎Inside: slot spacing

Jeffa: Add VFD and boards

2016-08-01T17:36:24Z

Add VFD and boards

Jeffa: initial creation

2016-08-01T17:07:11Z

initial creation

New page

{{Blockquote| '''Ademco 685 Digital Alarm Receiver'''

''the stealth S-100 chassis''

Provision for battery backup
}}

This alarm is built on a S-100 Chassis. It comes with a California Computer Systems (CCS) 2810 2 / 4 mhz switchable Z80 CPU. It doesn't have the CMOS EPROM installed however I burnt one from a copy of my existing CCS system, changed a couple jumpers and there we go a nice auto bauding serial console with a ROM Monitor. Get a feel for the size of the enclosure for this if not rack mounted. This is the chassis after I striped it of an unnecessary wiring harness. The chassis removed from the enclosure weights in at 20 pounds where a CompuPro desktop weights 32 pounds. I measured the DC supply at 9.18, 14.22 and -15.8 I see a bunch on ePay and have seen them on Craigslist too.

I installed a set of CCS boards and successfully booted from 8" FDD at both 2 and 4 mhz. I tried a CompuPro set without success. Interesting that I haven't made the CCS board set work on the CompuPro chassis. Buss termination needs more experimentation.

[[File:Ademco685PaletSideFrontView.jpg|600px]]
[[File:Ademco685PaletSideRearView.jpg|600px]]

[[File:Ademco685TopView.jpg|600px]]

[[File:Ademco685SnipWireHarness.jpg|600px]]

I've cut away the wire harness. There is a single purple wire to leave between the aluminum supply within the main supply that goes to the PCB mounted against the outer wall of the chassis.

[[File:Ademco685PwrSplyDetail.jpg|600px]]

Leave this purple wire.

[[File:Ademco685RearView.jpg|600px]]

[[File:Ademco685FrontFacePlate.jpg|600px]]

A standard rack mount plate can easily replace the front panel. Drill 4our holes to attach to chassis.

@@ Line 11: / Line 11: @@
 ==Resources==
-=== * [[CCS Z-80 CPU Model 2810A|CCS 2810]] page with links to Moss 2.2 monitor code.===
+===[[CCS Z-80 CPU Model 2810A|CCS 2810]] page with links to Moss 2.2 monitor code.===
 ==Cabinetry==

@@ Line 11: / Line 11: @@
 ==Resources==
-* [[CCS Z-80 CPU Model 2810A|CCS 2810]] page with links to Moss 2.2 monitor code.
+=== * [[CCS Z-80 CPU Model 2810A|CCS 2810]] page with links to Moss 2.2 monitor code.===
 ==Cabinetry==

← Older revision		Revision as of 23:22, 8 September 2016
Line 10:		Line 10:
	I installed a set of CCS boards and successfully booted from 8" FDD at both 2 and 4 mhz. I tried a CompuPro set without success. Interesting that I haven't made the CCS board set work on the CompuPro chassis. Buss termination needs more experimentation.		I installed a set of CCS boards and successfully booted from 8" FDD at both 2 and 4 mhz. I tried a CompuPro set without success. Interesting that I haven't made the CCS board set work on the CompuPro chassis. Buss termination needs more experimentation.

		+	==Resources==
		+	* [[CCS Z-80 CPU Model 2810A\|CCS 2810]] page with links to Moss 2.2 monitor code.
	==Cabinetry==		==Cabinetry==

@@ Line 17: / Line 17: @@
 ==Inside==
-If you look closely you'll see that the connector spacing is not consistent. I didn't measure, but a board set fits in the slots that are closer together.
+If you look closely you'll see that the S-100 edge connector spacing is not consistent. I didn't measure, but a board set fits in the slots that are closer together.
 [[File:Ademco685TopView.jpg|600px]]

← Older revision		Revision as of 18:16, 1 August 2016
Line 16:		Line 16:

	==Inside==		==Inside==
		+
		+	If you look closely you'll see that the connector spacing is not consistent. I didn't measure, but a board set fits in the slots that are closer together.
		+
	[[File:Ademco685TopView.jpg\|600px]]		[[File:Ademco685TopView.jpg\|600px]]

@@ Line 34: / Line 34: @@
 ==Front face==
 [[File:Ademco685FrontFacePlate.jpg|600px]]
 A standard rack mount plate can easily replace the front panel. Drill 4our holes to attach to chassis.

@@ Line 10: / Line 10: @@
 I installed a set of CCS boards and successfully booted from 8" FDD at both 2 and 4 mhz. I tried a CompuPro set without success. Interesting that I haven't made the CCS board set work on the CompuPro chassis. Buss termination needs more experimentation.
 [[File:Ademco685PaletSideFrontView.jpg|600px]]
 [[File:Ademco685PaletSideRearView.jpg|600px]]
 [[File:Ademco685TopView.jpg|600px]]
@@ Line 20: / Line 22: @@
 I've cut away the wire harness. There is a single purple wire to leave between the aluminum supply within the main supply that goes to the PCB mounted against the outer wall of the chassis.
 [[File:Ademco685PwrSplyDetail.jpg|600px]]
 Leave this purple wire.
 [[File:Ademco685RearView.jpg|600px]]
+==Front face==
 [[File:Ademco685FrontFacePlate.jpg|600px]]
 A standard rack mount plate can easily replace the front panel. Drill 4our holes to attach to chassis.