TE16   tape drive
RH11   MASSBUS controller

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INTRODUCTION


AVAILABLE  DOCUMENTION TE16 maintenance manual


GENERAL  DRIVE  INFORMATION



RH11  MASSBUS  UNIBUS  INTERFACE

The RH11 controller consists of a dedicated 9-slot backplane in which the RH11 modules are seated. RH11 MASSBUS controller

Notes  (see RH11 backplane image).

1. UNIBUS A IN.
may be either M920 (connection from adjacent device) or BC11A cable (connection from other box or non-adjacent device).

2. UNIBUS B IN and OUT.
may be M9300 (termination at beginning or end of UNIBUS B) or BC11A cable (connection to other BUS B devices).

3. UNIBUS A OUT.
may be either M920 (connection from adjacent device), M930 (termination at end of UNIBUS A) or BC11A cable (connection to next box or non-adjacent device).

4. G727 Bus Grant Continuity (slot 7-8-9).
The Grant modules must be inserted at position D in all three slots. Basically, the slots 7-8-9, positions C thu F are Small Peripheral Controller (SPC) slots. However I have a bulletin that says that the SPC slots may not contain any controllers because of the power drain via the backplane. Since they are SPC slots they require a G727 in position D.

The empty slot positions are not used, the UNIBUS Power Fail modules are M688 boards.


CONTROLLER  DIAGNOSTICS

The RH11/TE16 subsystem has the following diagnostics:


 
The (x) represents the revision level.


TE16  BOOTSTRAP  DATA

Loading or toggling in this data enables the PDP to boot from the TE16 tape.

    How to load a bootstrap program and start the execution.

The start address is 001000.

table comes here.