
			Stallion Technologies EasyConnection 


DIP Switch Settings
-------------------
The EasyConnection ISA boards have one eight position DIP switch (SW1) which 
can select 256 different primary I/O addresses when using EC8/32, and 128 
different I/O addresses when using EC8/64, in the address range 200h - 3FFh.  

On the EC8/32, the secondary I/O address is selected by registers in the 
primary address space, eliminating the need for a second DIP switch.  The 
value for the secondary address is also in the range of 200h - 3ffh and 
occupies 32 bytes. The secondary address may be shared by all boards. 

The EC8/32-MCA and EC8/32-PCI boards have no switches to configure.  The
EC8/32-MCA is configured by the Microchannel Configuration Utility and the
EC8/32-PCI is configured by the PCI BIOS.

Setting the DIP Switches
------------------------

The DIP switch settings vary, depending on the board type. Please be sure to 
use the correct table from the following pages.


DIP Switch settings for EC8/32-AT
---------------------------------

	DIP Switch (SW1) No.					I/O
1	2	3	4	5	6	7	8	Address

			ON	ON	ON	ON	ON	20x
			OFF	ON	ON	ON	ON	21x
			ON	OFF	ON	ON	ON	22x
			OFF	OFF	ON	ON	ON	23x
			ON	ON	OFF	ON	ON	24x
			OFF	ON	OFF	ON	ON	25x
			ON	OFF	OFF	ON	ON	26x
			OFF	OFF	OFF	ON	ON	27x
			ON	ON	ON	OFF	ON	28x
			OFF	ON	ON	OFF	ON	29x
			ON	OFF	ON	OFF	ON	2Ax
			OFF	OFF	ON	OFF	ON	2Bx
			ON	ON	OFF	OFF	ON	2Cx
			OFF	ON	OFF	OFF	ON	2Dx
			ON	OFF	OFF	OFF	ON	2Ex
			OFF	OFF	OFF	OFF	ON	2Fx
			ON	ON	ON	ON	OFF	30x
			OFF	ON	ON	ON	OFF	31x
			ON	OFF	ON	ON	OFF	32x
			OFF	OFF	ON	ON	OFF	33x
			ON	ON	OFF	ON	OFF	34x
			OFF	ON	OFF	ON	OFF	35x
			ON	OFF	OFF	ON	OFF	36x
			OFF	OFF	OFF	ON	OFF	37x
			ON	ON	ON	OFF	OFF	38x
			OFF	ON	ON	OFF	OFF	39x
			ON	OFF	ON	OFF	OFF	3Ax
			OFF	OFF	ON	OFF	OFF	3Bx
			ON	ON	OFF	OFF	OFF	3Cx
			OFF	ON	OFF	OFF	OFF	3Dx
			ON	OFF	OFF	OFF	OFF	3Ex
			OFF	OFF	OFF	OFF	OFF	3Fx

ON	ON	ON						xx0
OFF	ON	ON						xx2
ON	OFF	ON						xx4
OFF	OFF	ON						xx6
ON	ON	OFF						xx8
OFF	ON	OFF						xxA
ON	OFF	OFF						xxC
OFF	OFF	OFF						xxE


For example, the default I/O address of 2A0 will have the following DIP switch 
setting for an EC 8/32:

ON	ON	ON	ON	OFF	ON	OFF	ON	2A0


DIP Switch settings for EC8/64-AT
---------------------------------

	DIP Switch (SW1) No.					I/O
1	2	3	4	5	6	7	8	Address

		ON	ON	ON	ON	ON	OFF	20x
		OFF	ON	ON	ON	ON	OFF	21x
		ON	OFF	ON	ON	ON	OFF	22x
		OFF	OFF	ON	ON	ON	OFF	23x
		ON	ON	OFF	ON	ON	OFF	24x
		OFF	ON	OFF	ON	ON	OFF	25x
		ON	OFF	OFF	ON	ON	OFF	26x
		OFF	OFF	OFF	ON	ON	OFF	27x
		ON	ON	ON	OFF	ON	OFF	28x
		OFF	ON	ON	OFF	ON	OFF	29x
		ON	OFF	ON	OFF	ON	OFF	2Ax
		OFF	OFF	ON	OFF	ON	OFF	2Bx
		ON	ON	OFF	OFF	ON	OFF	2Cx
		OFF	ON	OFF	OFF	ON	OFF	2Dx
		ON	OFF	OFF	OFF	ON	OFF	2Ex
		OFF	OFF	OFF	OFF	ON	OFF	2Fx
		ON	ON	ON	ON	OFF	OFF	30x
		OFF	ON	ON	ON	OFF	OFF	31x
		ON	OFF	ON	ON	OFF	OFF	32x
		OFF	OFF	ON	ON	OFF	OFF	33x
		ON	ON	OFF	ON	OFF	OFF	34x
		OFF	ON	OFF	ON	OFF	OFF	35x
		ON	OFF	OFF	ON	OFF	OFF	36x
		OFF	OFF	OFF	ON	OFF	OFF	37x
		ON	ON	ON	OFF	OFF	OFF	38x
		OFF	ON	ON	OFF	OFF	OFF	39x
		ON	OFF	ON	OFF	OFF	OFF	3Ax
		OFF	OFF	ON	OFF	OFF	OFF	3Bx
		ON	ON	OFF	OFF	OFF	OFF	3Cx
		OFF	ON	OFF	OFF	OFF	OFF	3Dx
		ON	OFF	OFF	OFF	OFF	OFF	3Ex
		OFF	OFF	OFF	OFF	OFF	OFF	3Fx

ON	ON							xx0
OFF	ON							xx4
ON	OFF							xx8
OFF	OFF							xxC


For example, the default I/O address of 2A0 will have the following DIP 
switch setting for an EC 8/64:

ON	ON	ON	OFF	ON	OFF	ON	OFF	2A0


EasyConnection Module Notes
===========================

EasyConnection Expansion
------------------------
EasyConnection supports up to four (4) modules per board, with a maximum of 
64 ports per EC 8/64. Modules of any type may be mixed  with  one another.  
For example, 8 and 16 port DB25 modules can be connected in any combination 
with 8 and 16 port RJ45 modules to produce customer specific port 
configurations.

Warning:  
The connection of more than 4 modules per board (exceeding the 64 port 
(EC 8/64) board limit) may result in a malfunction of the system and possible 
damage to the board (ie. blown fuses).


EasyConnection Module Assembly
------------------------------
EasyConnection modules are fixed together using a mounting bracket.  This 
bracket serves two purposes:

o	A joining bracket, connecting two or more modules together.
o	A wall mounting bracket, allowing one or more modules to be 
	wall mounted.

Each EasyConnection module is supplied with one mounting bracket and four 
screws.

Warning:
	This bracket MUST be used to connect adjoining 
	modules in order to provide a secure connection 
	and avoid possible damage to the hardware.
	Before connecting or disconnecting modules, 
	you MUST  power down the host computer to avoid 
	board damage.


Transient voltage suppressors are included to protect each port, reducing 
the possibility of RS232 damage caused by lightning strikes in the vicinity 
or induced voltages from electric motors, plant equipment and fluorescent 
lights.

To reduce the possibility of damage caused by improper earthing of a system 
or serial device the user should connect chassis ground on the asynchronous 
module port (pin 1 on DB25, pin 3 on RJ45) to the RS232 cable shield and to 
the chassis pin on the serial device connector.


I/O Port Pinout Diagrams
------------------------
The EasyConnection modules house female DB25 sockets or RJ45 female 
connectors.  The port numbers are marked near their respective sockets 
on the module.

	Asynchronous Module DB25 Pinout (RS232)

	1	Chassis Ground
	2	TXD
	3	RXD
	4	RTS
	5	CTS
	7	Signal Ground
	8	DCD
	20	DTR


Note:
It is very important to ensure that the shield wire is connected to the 
metal shell of only one of the DB25 connectors when making up serial I/O 
cables (ie. only one end of each cable).


Cabling Issues
--------------

Serial devices may be attached to EasyConnection boards in various module 
configurations.  The modules available are:

	o	8 port DB25 module	(RS232)
	o	16 port DB25 module	(RS232)
	o	8 port RJ45 module	(RS232)
	o	16 port RJ45 module	(RS232)
	o	8 port DB25 dual interface module	(RS232 and RS422)

As additional serial ports are required, more can be added by simply 
clipping on extra modules, allowing 8 to 64 ports per slot.


Serial Interfaces for Asynchronous Modules
------------------------------------------
All asynchronous modules support RS-232-D and RS-232-E signalling, standards 
which supersede RS-232-C.  The enhanced standard removes the once imposed 
50ft distance limit, though in practice, reliable operation was possible 
over 100ft using low capacitance cable.  Using very low capacitance cable 
(5 pF/foot) with EasyConnection means that reliable RS232 operation is 
possible up to 500 feet at data rates up to 38.4 Kbps.  This assumes that 
the system and the serial device are in the same building and that there 
is a chassis ground connection between the devices through the cable shielding.

For medium speed devices which are up to 4000ft from the host system, the 
Dual Interface Module should be used as it provides balanced RS-422-A 
operation as well as RS232.  The user can choose either of these standards 
on any port by simply wiring the cable for that standard.

Most RS232 ICs cannot cope with high date rates (>50Kbps) even over short 
cable runs (<50ft).  EasyConnection uses RS232 low-power ICs with high 
noise immunity and can drive data rates up to 145 Kbps over very low 
capacitance cable to 100ft.  In many instances, this eliminates the need 
for a short haul modem or having to use RS-422-A converters for the serial 
device.  The Dual Interface Module can drive high speed devices (>100Kbps) 
over a distance of 1000ft using RS-422-A, this may be useful for high-speed 
asynchronous point-to-point networks.


Asynchronous Module RJ45 Pinout (RS232)
---------------------------------------

	1	DCD		
	2	RTS				   ,---.	
	3	Chassis Ground			,--|   |---,	
	4	TXD				|	   |
	5	RXD				|	   |
	6	Signal Ground			|	   |
	7	CTS				| //////// |
	8	DTR				'----------'		
					    Pin   8......1	

Note:
	The 8 pin RJ45 female connector will also mate with RJ11 and RJ12 
	male connectors.  The RJ11 has four pins and will connect with pins 
	3-6 on the RJ45.  The RJ12 has six pins and will connect with pins 
	2-7 on the RJ45.  

For software handshaking you can use any RJ connector.  For hardware 
handshaking you must use an RJ12 or RJ45 connector.  For modems using all of 
the above lines, you must use an RJ45 connector with 8 pins.


Dual Interface Asynchronous Module DB25 Pinout (RS232 & RS422)
--------------------------------------------------------------

	1	Chassis Ground
	2	TXD
	3	RXD
	4	RTS
	5	CTS
	6	DSR
	7	Signal Ground
	8	DCD
	15	R(B) or RX+
	17	R(A) or RX-
	18	CONV
	19	T(B) or TX+
	20	DTR
	25	T(A) or TX-


Note:
	The Easy Connection 8 port DB25 Dual interface module supports DSR 
	which must be set high before data can be transmitted. (refer to 
	DSR in the Technical Reference, Chapter 2) The DSR pin on the Dual 
	Interface module needs to be wired appropriately to ensure the 
	signal is high. If no DSR pin is active on the opposite connector 
	then the signal needs to be looped (for example with DTR)  to ensure 
	the signal is high, and data can be transferred.  For example, on a 
	modem cable, DSR  (pin 6, as detailed above)  needs to be wired 
	directly to DSR on the opposite connector.  


   
