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----LEAR SIEGLER, INC.
DATA PRODUCTS DMSION
Saving Set-Up Functions - When the
various functions are selected they talce effect
upon exiting Set-Up Mode. The set-up is
stored in temporary "working" memory and
will be lost if the terminal is powered-down.
To cause the set-up functions to be
·n
non-volatile memory, press the
key when in Set-Up Mode. A save ope
will not be preformed if the I SA
VE
i
key is
pressed while the terminal is in any mode
other than Set-Up. The ADM 22 will always
power-up to the last saved set-up condition.
2.6 INTERFACE INFORMATION
The ADM 22 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. Figure 2-2 shows a
typical ADM 22 application. Figure 2-4
shows the rear panel locations of the interface
connectors. Figure 2-5 shows the logic
associated with these interfaces.
2.6.1 RS-232C Interface (J1)
The Primary (Modem) Port RS-232C Interface
provides the signals and levels associated
with RS-232C, allowing direct connection to a
~
computer or modem. The maximum
permissable cable length is 50 feet for RS-
232C applications.
2.6.2 20mA Current Loop
Interface (J1)
The ADM 22 can be configured for 20mA
Current Loop operation using the Primary
Modem port. Thecurrentloopinterfacesignal
levels allow cable lengths of up to 1000 feet.
The maximum baud rate for current loop
operation is 9600.
2.6.3 Auxiliary Port Interface (J2)
The Auxiliary Port is used for connecting an
RO (receive only) serial printer or other RO
device to the terminal using RS-232C signal
levels. The Auxiliary Port may be set for a
different baud rate and word structure than
the Primary Port. The ADM 22 can sense a
busy condition to prevent data loss by the
auxiliary device.
2-10
2.7 INSTALLING THE ADM 22
1.
Check the ON/OFF switch (refer to -
figure 2-4)to ensurethatitissetto OFF.
2. Connect the data interface cable(s) to the
terminal using the appropriate interface
information (paragraph 2.6).
3. Plug the power cord into a grounded AC
outlet of the proper voltage.
4.
Turn
on the terminal.
Nole
The BAUD RATE is factory set to
9600
baud.
5. Set the Baud= Set-Up function switch to
the desired baud rate (refer to Table 2-1).
6. Select the Set-Up Mode functions as
desired
to
establish
the
operating
parameters of the ADM 22 (refer to
Table 2-1). If the terminal is to power-up
with the selected functions, execute a Set-
U p "SAVE" operation (refer to
paragraph 2.5.2).
·
2.8 POWER TURN-ON
1. Set the ON/OFF switch to ON (refer to
figure 2-4).
2. Wait approximately 20 seconds for the
unit to warm up. The cursor should
appear
in
the HOME position.
2a. The
Self-Test
message
"VllFl
TEST OK" should also appearin the
upper left comer and the terminal
will sound the audible alarm.
Nole
"VllFl" is the firmware version
number and may be different for
subsequent releases.
2b. If the Self-Test message and the
cursor do not appear, turn off the
DP222
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