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4. Set the PIOU or PIOUS SW3 switch to the TTY position (RSSU is always TTY, SW3 is
not required).
Note
The PIOU or PIOUS SW3 switch is set to the MODEM position for IMDU operation
only.
5. Set the P13 jumper plug on the PIOU to the BELL configuration, or cut the W4 jumper on
the PIOUS (also for BELL configuration).
The P13 (PIOU) and W4 (PIOUS) CCITT configurations are not normally used in the
Note
USA.
6. Use Program 03, Code 41 for PIOU, PIOUS, or RSSU TTY port; or, Code 49 for RSIU/
RSIS, Slot 11. If using RISU or RSIS, set the appropriate TTY port and TTY port baud
rate using Program 76.
7. Set the communication parameters of DKAdmin/DKBackup to: 1200, 2400, or 9600 BPS,
7 data bit, even parity, and one stop-bit. This is done from the DKAdmin/DKBackup
Options/System Installation/Communication Setup Option.
8. Use the DKAdmin/DKBackup "Dial DK" function to call the External modem from the
DKAdmin/DKBackup PC as follows:
If the External modem is connected to a dedicated CO line, call the CO line number to
establish modem communication (see
If the External modem is connected to a standard telephone port, call a Strata DK CO
line that can be transferred to (or programmed to ring) the standard telephone modem
port to establish modem communication. It is also possible to establish
communications by calling in on a Strata DK DISA DID, or Auto Attendant, CO line
and dialing the intercom number of the modem connected to the standard telephone
port (see
Figure 19
on
Page
133).
PDIU-DS Modem Pool Installation
Figure 18
on
Page
132).
143
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