Service manual

Trancon (SUN820-217)
CARD DESCRIPTION
The Trancon board is a general-purpose processing card with two identical transputer
processor sections. One transputer has a directly-addressable RAM area of 64 Mbytes and
the other has 8 Mbytes in a programmable gate array, and external logic for deriving “Up”
and “Down” Services connections. These, together with the four transputer links, allow the
transputer to be placed in a network of interconnected transputers. The Trancon board runs
programs associated with the control of the console surface and automation processes.
LED INTERPRETATION
Processor 1
15, 16, 17,
18, 19 and 20 (yellow) software controlled
13 (yellow) word count heartbeat
14 (yellow) word count error
40 (red) ON indicates Reset and/or analyze active
35 (green) ON indicates Link 0 active
34 (green) ON indicates Link 1 active
33 (green) ON indicates Link 2 active
31 (green) ON indicates Link 3 active
39 (red) ON indicates Transputer error
Processor 2
21, 22, 23,
24, 25 and 26 (yellow) software controlled
27 (yellow) word count heartbeat
28 (yellow) word count error
42 (red) ON indicates Reset and/or analyze active
38 (green) ON indicates Link 0 active
37 (green) ON indicates Link 1 active
36 (green) ON indicates Link 2 active
32 (green) ON indicates Link 3 active
41 (red) ON indicates Transputer error
Digital Service Manual
Issue 3 Page 22
D40
D35
D34
D33
D31
D39
D15
D16
D17
D18
D19
D20
D42
D38
D37
D36
D32
D41
D13
D14
D21
D22
D23
D24
D25
D26
D27
D28
SUN820-217