Technical information

2.2.2 KFQSA Storage Adapter
The KFQSA is an intelligent storage adapter that allows Q22-bus systems
to communicate with storage peripherals based on the Digital Storage
System Interconnect (DSS!).
Functional Information
Controller protocol
Supported drive
Drives per adapter
Drive interconnect
Controllers per system
Ordering Information
KFQSA-SG
Performance
Peak transfer rate
Sustained transfer rate
I/O request throughput
Error detection
Configuration Information
Form factor
Power requirements
Power consumption
Bus loads
Related Documentation
EK-KFQSA-IN
SSP: to and from Q22-bus host
DSSI: to and from ISAs
RF -series !SAs
7
Direct
2 maximum
RF -series ISA adapter, controls up to a maximum
of 7 RF -series ISAs
4 Mbytes/second
1.5 Mbytes/second
190 I/O requests/second (single-sector reads)
DSSI bus parity and check character, all
transmissions
Quad height
+5 Vdc, 5.5 A (typical)
27.5 W
4.4
ac
0.5 dc
KFQ Storage Adapter Installation and User
Manual
Option Specifications 2-5