Configuring BSC Interactive 10-5
1If the TPAD is connecting to a logical X.25 port in the SmartSwitch, Atcl must b e Y.
Explanat ions of Port Parameters
Port Type
specifies the protocol the port will support. Selecting this parameter will display a list
of all serial protocols loaded in the device.
Physical Port Interface
must be configured as follows. For reference, port locations are shown on page 6-1.
●Port 0 is a lways RS-232.
●Port 1 must be RS-232 if the port is being configured for BSC.
●Ports 2 and 3 are determined by the attached cables: RS-232, V.35, or RS-449.
Blocked Port Flag
will cause the port to be enabled (N) or di s abled ( Y) at node IPL. The port will remain
in that state until this parameter is changed or an on-line enable ([B], [B], [C] from the
Main Me nu) or dis able ( [B], [B], [A] from the Main Menu) is performed.
Line Speed
is the data transmission rate in bits per second, and the clock speed on a serial port
when the port is a physical DCE (i.e., the attached I/O cable is DCE). If this port is a
physical DTE, specify the line speed that matches (as closely as possible) that of the
device connected directly to the port.
Retransmission Period
is the length of time before the node will transmit an I-frame if the previous trans-
missio n is n ot ac knowle dged. I f th e period expi res, t he tim er wil l be reset a nd a s uper-
visory frame w ill be transmitted demanding immediate ackno wledgement. The
Maximum Retransmissions (see that entry) counter will also be incremented.
The default value of 2000 ms allows avoidance of unnecessary retransmission of
frames that have merely been delayed.
Table 10-2 BSC Interac tive Port Subscri be r Param eters
Parameter Valid Values Default Value
Sq (Sequence) 1–16 none
Loca l S u b 0–15 characters none
Remo te Su b 0–15 characters none
Atcl (Autocall) Y/N (used only on TPAD) 1N
Rtyt m (Retry Timer) (sec) 15–255 60
Rty # (Retry Number) 0–255 0 (inde finite )
Conn ID 00–ff none