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SCRAMNET+ VME3U

SYSTRAN CORPORATION

SCRAMNET+ VME3U

NIC Type

Proprietary

Chipset

Systran Corporation

Maximum Onboard Memory

8MB DRAM

I/O Options

Bypass connector

Network Transfer Rate

150Mbps

Data Bus

VME

Topology

Linear Bus/Ring

Wire Type

RG-58A/U 50ohm coaxial

Fiber optic cable

Boot ROM

Not available

CONNECTIONS

Function

Label

Function

Label

Auxiliary connector (see pinout below)

J1

Fiber optic ST receive connector 1

W1B

Auxiliary connector (see pinout below)

J2

RG-58A/U 50ohm coaxial receive connector 2

W2A

Bypass connector

J301

Fiber optic ST receive connector 2

W2B

Daughterboard header

J302

RG-58A/U 50ohm coaxial transmit connector 1

W3A

Memory card header

J305

Fiber optic ST transmit connector 1

W3B

RG-58A/U 50ohm coaxial receive connector 1

W1A

RG-58A/U 50ohm coaxial transmit connector 2

W4A

Fiber optic ST transmit connector 2

W4B

Header to main board J302

W5B

Header to main board J302

W5A

Header to main board J302

W5C

J1 PINOUT

Function

Pin

Function

Pin

Not used

1

External LED (see LED2 in table)

3

External LED (see LED1 in table)

2

Signal common

4

J2 PINOUT

Function

Pin

Function

Pin

Not used

1

External LED (see LED3 in table)

3

Message waiting signal

2

Signal common

4

USER CONFIGURABLE SETTINGS

Setting

Label

Position

Chassis ground connected to signal ground

J3

Pins 2 & 4 closed

 

Chassis ground not connected to signal ground

J3

Pins 1 & 3 closed

EEPROM write protect enabled

J303

Pins 1 & 3 closed

 

EEPROM write protect disabled

J303

Pins 2 & 4 closed

EEPROM read protect enabled

J304

Pins 1 & 3 closed

 

EEPROM read protect disabled

J304

Pins 2 & 4 closed

Variable length packets disabled

J4

Pins 1 & 3 closed

 

Variable length packets enabled

J4

Pins 2 & 4 closed

Card is not software compatible with ScramNET Classic cards

J5

Pins 1 & 3 closed

 

Card is software compatible with ScramNET Classic cards

J5

Pins 2 & 4 closed

Control/Status register addressing is 16 bits wide

S6

Position 6

 

Control/Status register addressing is 24 bits wide

S6

Position A

CONTROL/STATUS REGISTER ADDRESS SELECTION

A total of 262,144 address settings are available. Switches S1 through S5 set the hexadecimal memory address. SW1 is the Most Significant Nibble and switch SW5 is the Least Significant Nibble, though the bottom two bits of SW5 are always 0. The switches have the following decimal weight values: SW1=1,048,576, SW2=65,536, SW3=4,096, SW4=256, SW5=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

Carrier signal is detected

LED2

Green

Off

Carrier signal is not detected

LED3

N/A

On

Error condition detected

LED3

N/A

Off

Error condition not detected

Note:LED3 is only available via connector J2.