RANCHO TECHNOLOGY, INC.

RTSDA-M2/RTSDA-S2/RTSDA-SP

Data bus:

None

Size:

3.25 in. form factor (RTSDA-S2)

5.25 in. x 8.2 in. x 1.75 in. (RTSDA-M2)

10 in. x 10.5 in. x 3.0 in. (RTSDA-SP)

Hard drive supported:

Fast SCSI-2 devices, single-ended to differential converter

Floppy drives supported:

None

CONNECTIONS

Function

Location

50-pin single-ended SCSI connector - internal

J1

50-pin differential SCSI connector - internal

J2

Converter active LED

J3

SCSI active LED

J4

Note: On the RTSDA-SP model, the converter LED is located on the front panel and the 50-pin connectors are external.

TERMINATION SELECTION

Function

Single-End

Differential-End

 

 

W3

RN1-4

RN5-8

»

Enable

Closed

Installed

Installed

 

Disabled

Open

Not installed

Not installed

TERMINATION POWER SETTINGS

Function

Single-side

Differential-side

 

 

W1

W2

W4

W5

»

TERMPWR supplied to converter terminators directly

Open

Closed

Closed

Open

 

TERMPWR supplied to converter terminators through diode

Open

Open

Open

Open

 

TERMPWR supplied to both converter terminator and remote SCSI bus pin 26 through diode (with backflow prevention)

Closed

Open

Open

Closed

 

TERMPWR supplied to both converter terminators and remote SCSI bus pin 26 directly

Closed

Closed

Closed

Closed

Note: Do not use the last option when other peripherals supply terminator power to the SCSI bus.