TM 11-5805-715-34/EE119-DB-MMI-010-E154 CV3478/TO 31W2-2TTC39-12
(3) The card type connector and pin columns
b. Signal String List Table (table 3-6). This
(3) identify all the connections to which a signal is
list identifies all signals at a connector and circuit
connected. The connector/pin information is read
card pin.
from right to left from the signal name.
(1) Item (1) identifies the NATO interface
(4) Item (4)column indicates that the signal
unit assembly.
is part of a twisted pair.
(2) The NET NAME column (2) identifies the
signal names in alphanumerical sequence.
Table 3-1. NATO Interface Unit Circuit Card Location
Channel
Card Slot
Part number
Card type
1
A2
SM-E-809647
NIU-A receive
A3
SM-E-810554
NIU-B2 transmit
2
A5
SM-E-809647
NIU-A receive
A7
SM-E-810554
NIU-B2 transmit
3
A9
SM-E-809647
NIU-A receive
A11
SM-E-810554
NIU-B2 transmit
4
A13
SM-E-809647
NIU-A receive
A15
SM-E-810554
NIU-B2 transmit
5
A18
Sm-E-809647
NIU-A receive
A20
SM-E-810554
NIU-B2 transmit
6
A22
SM-E-809647
NIU-A receive
24
SM-E-810554
NIU-B2 transmit
7
A26
SM-E-809647
NIU-A receive
A29
SM-E-810554
NIU-B2 transmit
8
A31
SM-E-809647
NIU-A receive
A33
SM-E-810554
NIU-B2 transmit
Common
A43
SM-E-810540
NIU-CE common
to all
equipment
channels
(5) Identification of the abbreviations used in
c. How to Use the Tables for Signal Tracing.
the table:
(a) N as the last character of the signal
NOTE
name indicates signal negation (low).
(b) A as the last character of the signal
Read the important basic information and
name indicates bus.
proceed with the following sequence of
(c) B as the last character of the signal
steps.
name indicates bus.
(d) J indicates jack type connector.
When tracing a signal, always proceed in the fol-
(e)
XA indicates circuit card type
lowing sequence: from table 3-1 to the logic dia-
connector followed by slot, pin reference
gram; from the logic diagram to the signal location
designator, and (#); for example:
table (table 3-5); from the signal location table to
the signal string list table (table 3-6). When the
XA 00 03 - 0018 ( # )
connection for a particular signal name in the signal
string list table has been identified, return to table
Pin No. 18
ceed to locate the pin on the logic diagram for
Card Slot 3 (see table 3-1 and FO-6
signal destination.
for slot association)
Row (not applicable)
3-12
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