User`s guide

90 DC 900-1340I
BSC Programmer’s Guide
nal clocking using a hardware jumper. If you need to set internal clocking, call the Pro-
togate customer support number given in the Preface.
4.3 Reply Timer Length Option (3)
The reply time is the length of time in seconds that the BSC 3270 software waits for the
remote station to reply to a transmission. The transmission may be a poll, select, or data
block. If the remote station does not respond within the timeout period, the BSC soft-
ware repeats the transmission up to the number of times allowed by the retry limit
option (Section 4.12) before aborting with the
DLI_ICP_ERR_RETRY_EXCEEDED retry limit
error. This option also controls the length of time BSC waits in receive mode before
sending ENQ to the remote station.
To set this option using the DLI configuration file, use the replyTimerLen parameter; for
example,
replyTimerLen = 3. See Table 7–1 on page 190.
4.4 Number of Leading SYN Characters Option (4)
This option specifies the number of SYN characters to precede all transmitted data
blocks. Certain links may require more SYN characters to ensure synchronization on
poor-quality lines. The minimum number of leading SYN characters is two; the maxi-
mum number is eight. This option does not affect the number of SYN characters pre-
ceding the EOT part of a poll or select sequence. That number is fixed at two SYN
characters.
To set this option using the DLI configuration file, use the numLeadSync parameter; for
example,
numLeadSync = 3. See Table 7–1 on page 190.
4.5 Protocol Option (5)
This option indicates the protocol used on the ICP and has only one setting
(
“BSC3270”). This setting is reported in the configuration report (Section 3.4.2.2 on