NIC Type	Proprietary
Chipset	Systran Corporation
Maximum Onboard Memory	8MB DRAM
I/O Options	Bypass connector
Network Transfer Rate	150Mbps
Data Bus	VME double
Topology	Linear Bus/Ring
Wire Type	RG-58A/U 50ohm coaxial Fiber optic cable
Boot ROM	Not available

CONNECTIONS
Function	Label	Function	Label
Header for cabinet connection	J5	RG-58A/U 50ohm coaxial receive connector 1	W1A
Auxiliary connector (see pinout below)	J7	Fiber optic ST receive connector 1	W1B
Bypass connector	J301	RG-58A/U 50ohm coaxial receive connector 2	W2A
Daughterboard header	J302	Fiber optic ST receive connector 2	W2B

CONNECTIONS (CON’T)
Function	Label	Function	Label
RG-58A/U 50ohm coaxial transmit connector 1	W3A	Fiber optic ST transmit connector 2	W4B
Fiber optic ST transmit connector 1	W3B	Header to main board J302	W5A
RG-58A/U 50ohm coaxial transmit connector 2	W4A	Header to main board J302	W5B

J7 PINOUT
Function	Pin	Function	Pin
Ground	1	Trigger 1 signal	3
Trigger 1 and Trigger 2 signal	2	Trigger 2 signal	4

USER CONFIGURABLE SETTINGS
Setting		Label	Position
»	Card is not software compatible with ScramNET Classic cards	J2	Pins 1 & 3 closed
	Card is software compatible with ScramNET Classic cards	J2	Pins 2 & 4 closed
»	SIMM memory disabled, on-board memory enabled	J3	Pins 1 & 3 closed
	SIMM memory enabled, on-board memory disabled	J3	Pins 2 & 4 closed
»	Variable length packets disabled	J4	Pins 1 & 3 closed
	Variable length packets enabled	J4	Pins 2 & 4 closed
»	Chassis ground connected to signal ground	J6	Pins 2 & 4 closed
	Chassis ground not connected to signal ground	J6	Pins 1 & 3 closed
»	EEPROM write protect disabled	J303	Pins 2 & 4 closed
	EEPROM write protect enabled	J303	Pins 1 & 3 closed
»	EEPROM read protect disabled	J304	Pins 2 & 4 closed
	EEPROM read protect enabled	J304	Pins 1 & 3 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
128KB	None	None	None	None
512KB	(1) 512K x 9	None	None	None
1MB	(1) 512K x 9	(1) 512K x 9	None	None
2MB	(1) 512K x 9	(1) 512K x 9	(1) 512K x 9	(1) 512K x 9
2MB	(1) 2M x 9	None	None	None
4MB	(1) 2M x 9	(1) 2M x 9	None	None
8MB	(1) 2M x 9	(1) 2M x 9	(1) 2M x 9	(1) 2M x 9
Note:The SIMMs are proprietary and must be ordered from Systran.

ADDRESSING RESOLUTION SELECTION
Control/Status Registers		Memory	S8
	16 bits	24 bits	Position 6
»	16 bits	32 bits	Position 7
	24 bits	24 bits	Position A
	24 bits	32 bits	Position B
	32 bits	24 bits	Position E
	32 bits	32 bits	Position F

CONTROL/STATUS REGISTER ADDRESS SELECTION

A total of 134,217,728 address settings are available. Switches S1 through S7 set the hexadecimal memory address. SW1 is the Most Significant Nibble and switch SW7 is the Least Significant Nibble, though the bottom two bits of SW7 are always 0. The switches have the following decimal weight values: SW1=4,194,304, SW2=2,097,152, SW3=1,048,576, SW4=65,536, SW5=4,096, SW6=256, SW7=16. Set the switches, multiply the number on the switch by its weight value, add the values obtained for each switch, and round down to the nearest multiple of 64 to obtain the correct memory address.

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
LED1	Green	On	Network connection is good
LED1	Green	Off	Network connection is broken
LED2	Green	On	Message is waiting in transmit FIFO
LED2	Green	Off	Message is not waiting in transmit FIFO
LED3	Green	On	Carrier signal is detected
LED3	Green	Off	Carrier signal is not detected
LED4	Yellow	On	Error condition detected
LED4	Yellow	Off	Error condition not detected
LED5	Green	On	Message received from this node
LED5	Green	Off	Message not received from this node
LED6	Green	On	Message received from another node
LED6	Green	Off	Message not received from another node