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_ _ _ _ LEAR SIEGLER, INC.
DATA PRODUCTS DIVISION
2.6.12 Strapping Options
The following chart details the strapping
options available for installation of the ADM
36. The ADM 36 uses on-board ROM,
therefore it is not necessary for the user to set
or change jumpers or straps for normal
operation.
AS SHIPPED:
E 1 -
1-2
E2 -
E3
-
E4 -
E5 -
E6 -
E7 -
E8 -
E9 -
E 10 -
E 11 -
3-4
5-6
7-8
9-10
2-4
1-2
5-6
9-10
13-14
15-16
3-4
3-4
3-4
3-4
3-4
1-3
1-2
3-4
2.7 INTERFACE INFORMATION
The ADM 36 may be cabled directly to a local
computer, serial printer, or other auxiliary
device; or it may be connected via telephone
data lines to a remote computer located
anywhere in the world. Remote computer
connections require the use of a modem or
data set figure 2-6 shows a typical ADM 36
DP236
2-15
application, while figure 2-7 shows the rear
panel location of the interface connectors.
2.7.1 RS-232C (Modem) Interface
The RS-232C Modem Interface allows the
ADM 36 to be connected directly to a host or a
modem utilizing RS-232C signal levels.
Figure
2-8
depicts the pins and associated
signal names from the RS-232C standard that
are used in the ADM 36. Note that the modem
connector is also used for RS-422A and 20mA
current loop interfacing. Thus only the
signals indicated should be used. Modem
cables using all 25 pins may cause invalid
signals to be present at the connecting
devices.
2.7.2 RS-422A (Modem) Interface
The RS-422A Interface allows the ADM 36 to
be connected to a device using the differential
line levels associated with RS-422A standard.
Refer to figure
2-9
for details on which pins
of the modem connector the RS-422A signals
are assigned. Damage may result if RS-232C
level signals are connected to RS-422A
devices.
2.7.3 20mA Current Loop (Modem)
Interface
The ADM 36 Modem connector also provides
the ability to interface to a host using 20mA
current loop levels. Figure 2-10 illustrates
the transmit and receive pairs associated
with current loop operation. The current loop
is always passive at the ADM 36.
2.7.4 Printer Port Interface
The PRINTER port is used for connecting a
serial printer to the terminal. Figure 2-11
shows the logic associated with the Printer
interface. Refer to SET-UP mode for the
settings of the features which enable the
PRINTER port and establish the RTS or X-
ON IX-OFF signal characteristics
appropriate for the printer in use.
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