Network Controllers Manual
51
RED STRIPE
INSTALL HEADER IN PLACE
OF RS-485 CHIP.
[NWC-0023.CDR]
MAXIM
UCN 5800A
9111
UCN 5800A
9111
UCN 5800A
9111
UCN 5800A
9111
TB1
TB3
TB2
24V COM EARTH
DATA
IN
DATA
OUT
+
+
+
-
-
TO "DATA IN"
TERMINALS
OF NEXT SO-20.
TO "DATA OUT"
TERMINALS
OF PREVIOUS
SO-20.
TO CORRESPONDING
TERMINALS OF
PS4/8B WITHIN SAME
ENCLOSURE
1
1
Supervised and power limited.
SO-20 and COMM-3S installed in common enclosure.
Remove SN-75176, RS-485 driver chip and replace with
header installed with red stripe oriented toward
notched end (pins 1 and 8) of socket.
NOTES:
1
2
3
3
P3
J3
J4
P1
P2
J1
J2
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