IBM System/34 Maintenance Manual page 432

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o
30-405
Locations
Figures 30-17 through 30-19 show the locations of the
major parts used with the 48OO-bps integrated modem_
Modem A
AB3B d
~
Dummy Top
-
~ar
Cable Tower Location
r----------- / -
Card Connector Line 1 0-86-1
n
n
n
n
~
Line2 0-86-2
Cable Tower . / Line 3 0-87-1
. - - - - - - - - - . / Line4 0-87-2
F2 G2 H2 J2
Top Card
Connector
Communications Adapter Card
Line 1, 2, 3, or 4
To Modem
Operator Panel
Note: For Modem 8 locations, see
paragraph 30-100.
i .
I
r----""1
I
I
I
I
• I
L.. _ _ _ _ _ _ _ _ _ _ .J
Lightning
Protect
Card
Figure 30-17. 4800 BPS Integrated Modem-Nonswitched Network (Modem A)
30-405
Or
External Cable to
Nonswitched Line
(red) }
Transmit
(white)
(yellOW)} Receive
(not used
with 2-wire
(black) connection)
w..!
~~~r!:s.::~e~o!e 2~-! ~ul!. ____ _
U.S. and Canada-
Red and Green (white) -Transmit
Black and Yellow-Receive
(yellow)
GJ
(red)
.0·
• 0 •
(black) . (green or white)
283-8 Plug
Multiline Communications Adapter 23