PDP11 PeripheralsHbk 1972 - Trailing-Edge

(A stepdown autotransformer is provided for 235-VAC operation.)
Phase:
Frequency:
Frequency Stabi lity:
Current:
Power Supplies:
Self Clocking:
Timing Tracks:
Write Lock Switches:
Data Transfer Path:
Shipping Weights:
Number of
Disks Desired
1
2
3
4
5
6
7
8
Single
50±2Hz or 60±2Hz
0.1 Hz/sec maximum drift (A constant-frequency
motor-generator set or static AC/ AC inverter
should be provided for installation with unstable
power sources.)
For a I-disk system: Starting current, 14 Amps;
Nominal current, 68 Amps.
For an 8-disk system: Starting current, 81 Amps;
Nominal current, 21 Amps.
Lower starting currents can be realized if disks are
sequenced.
Self contained in cabinet with controller. Also includes
line filter with each disk.
Miscellaneous
The RSll disk empioys self-clocking logic for reliable
data recovery. Each word is logically located
relative to the timing track.
3 plus 3 spare (pre-recorded; can be used for data
recovery if the primary timi-ng tracks are lost).
Sixteen switches on each RSl1. Each switch controls
the write protection for one 8-track (16,384
word) segment. WLO (DCS 10) is set if a write function
addresses a locked-out segment.
UNIBUS (DMA); RFll is Bus Master
RFll, RSll, power supplies and cabinet: 590lbs
(crated), 500lbs (uncrated)
RF11, RSll, RSllB, power supplies and cabinet:
690lbs (crated), 600lbs (uncrated)
RSllD, RSllB, RSllC, motor controllers and cabinet:
690lbs (crated), 600lbs (uncrated)
RSll RSllB RSllC RSllD
1 0 0 0
1 1 0 0
1 1 0 1
1 2 0 1
1 2 1 1
1 2 1 2
1 3 1 2
1 3 2 2
The RSll includes a standard mounting cabinet (71-7116 in.hx30 in.dx21-11 116
in.w) and 855 Power Control Unit. RSIIB designates the second disk in a cabinet,
RSllC designates the third. The RFll control and all power supplies mount
in the first cabinet. Other devices should not be mounted in disk cabinets. The
suffix (A) designates 50-Hz power. The RSI1D includes a standard mounting cabinet
and is the first disk in the second or third cabinet (cabinet has full front door;
no indicator panels).
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