[Linrad] WSE Control cable pinout

[Stan W1LE <verizon.net; stanw1le@xxxxxxxxxxxxxxxx>]

Hello Leif, and the Net:

I am trying to verify the WSE control cable from the PC
(25 pin D shell female @ the PC) to the WSE boxes ( DB9 male on the WSE).

The RX2500 only needs DC power, no control from parallel possible
The RX10700 box needs DC power and parallel control: Raw_Select_F,   
Data,   Status, and   Clock
The RX70 box needs DC power and parallel control:       Raw_Select_F,   
Data,   Status, and   Clock
RX144 box needs DC power and parallel control:            
Raw_Select-F,   Data,   Status, and   Clock
RXHFA box needs DC power and parallel control:          Raw_Select_F,   
Raw_Select_A,   Data,   Status, and   Clock

What pin on the DB25 is Clock ?  #1
What pin is Raw_Select_A   ?
What pin is Raw_Select_F   ?
What pin is Data  ?
What pin is Status  ?

Is there a definitive drawing for this WSE control/power cable ?
I could find details about the WSE connector pin outs,  but not this cable.
The nomenclature is also a gray area, to me, compared to the 1284-A IEEE 
standard

How should grounds(returns) be handled, all bonded to the computer 
chassis and the WSE chassis ?

Thanks   Stan, W1LE


The Parallel DB25 (female) on the PC is defined as:

Pin 	Compatibility mode 	Nibble mode 	Byte mode 	EPP mode 	ECP mode
1 	nStrobe 	HostClk 	HostClk 	nWrite 	HostClk
2 	Data 1 	Data 1 	Data 1 	AD1 	Data 1
3 	Data 2 	Data 2 	Data 2 	AD2 	Data 2
4 	Data 3 	Data 3 	Data 3 	AD3 	Data 3
5 	Data 4 	Data 4 	Data 4 	AD4 	Data 4
6 	Data 5 	Data 5 	Data 5 	AD5 	Data 5
7 	Data 6 	Data 6 	Data 6 	AD6 	Data 6
8 	Data 7 	Data 7 	Data 7 	AD7 	Data 7
9 	Data 8 	Data 8 	Data 8 	AD8 	Data8
10 	nAck 	PtrClk 	PtrClk 	Intr 	PeriphClk
11 	Busy 	PtrBusy 	PtrBusy 	nWait 	PeriphAck
12 	PError 	AckDataReq 	AckDataReq 	User defined 1 	nAckReverse
13 	Select 	Xflag 	Xflag 	User defined 3 	Xflag
14 	nAutoFd 	HostBusy 	HostBusy 	nDStrb 	HostAck
15 	nFault 	nDataAvail 	nDataAvail 	User defined 2 	nPeriphRequest
16 	nInit 	nInit 	nInt 	nInt 	nReverseRequest
17 	nSelectIn 	1284 Active 	1284 Active 	nAStrb 	1284 Active
18 	(nStrobe)ground return 	-- 	-- 	-- 	--
19 	(Data 1 and 2)ground return 	-- 	-- 	-- 	--
20 	(Data 3 and 4)ground return 	-- 	-- 	-- 	--
21 	(Data 5 and 6)ground return 	-- 	-- 	-- 	--
22 	(Data 7 and 8)ground return 	-- 	-- 	-- 	--
23 	Pins 11 and 15 ground return 	-- 	-- 	-- 	--
24 	Pins 10, 12, and 13 ground return 	-- 	-- 	-- 	--
25 	Pins 14, 16, and 17 ground return 	-- 	-- 	-- 	--

	
	
	
	
	

	
	
	
	
	


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