Technical information

2.2.21 TQK70 Controller
The TQK70 controller module provides the interface between the TK70 tape
drive and the Q22-bus.
Functional Information
Controller protocol TMSCP
Supported drive TK70
Drives per controller 1
Drive interconnect Direct
Controllers per system 1 maximum
Ordering Information
TQK70–SA Controller for TK70E–AF
TQK70–SF Controller for TK70E–AF, field-installed
Performance
Data throughput rate 125 Kbytes/second
Read/Write data transfers Up to 16-word burst mode DMA, truncated to 8-
word burst mode if another device is requesting
the bus
Buffer size 64 Kbytes
Configuration Information
Form factor Dual height
Power requirements +5 Vdc, 3.5 A; +12 Vdc, 0.0 A
Power consumption 17.5 W
Bus loads 4.3 ac; 0.5 dc
Related Documentation
EK–OTK70–OM TK70 Tape Drive Subsystem Owner’s
Manual
Option Specifications 2–31