Dial Operating Procedures; Sending Message Data To The Host System - IBM 3274 User Manual

Dial Operating Procedures
Step-by-step dial operating procedures for 3274-attached display
stations are described in the following paragraphs. Details
that are special to your location, however, are not contained in
the procedures. For example, operator identification codes or
operating instructions for non-IBM equipment attached to the
3274 are provided by the appropriate person in your
organization or are found in the user's program guide.
Note: In the following procedures, the term exclusion key is
used to describe the switch, knob, key, and
so
on, used
by your organization's communication equipment to
connect the
3274
to the telephone line.
Sending Message Data to the Host System
When an Integrated Modem with the Auto Answer Feature
Is Installed at the 3274
1.
The Ready (
II )
symbol should be displayed in the display
station's operator information area, indicating that the
3274 is ready.
2. Set the Data/Talk switch on the control panel to the Talk
position.
If
necessary, set the Pri/Sec (Primary/Secondary)
Line Speed switch to the appropriate position.
3. Perform step
a
or b (depending on the country):
a. (U.S. and Canada only)
Pick up the telephone handset, pull up the exclusion
key, and dial the host system's telephone number. If
the host system is equipped with an Auto Answer
feature, you should hear the answer tone; if it is not
equipped with an Auto Answer feature, the host system
operator should answer the call, verify when the host
system is ready for data transmission, and set the host
system's modem to data mode. In either case, you set
the Data/Talk switch on the control panel to the Data
Section
1.
Operator Information
1-49