
Chapter 7. DTE Port Configuration
7-10 Express 5210 User Manual 61200208L1-1
Slow Poll Ratio (POLL RATIO)
Determine how often devices on the Slow Poll list are polled. This
list is automatically managed based on poll timeouts. Initially, all
PUs are on the Normal list. When a PU times out a fixed number
of times, it is moved to the Slow Poll list. A PU remains on this list
until it responds properly to a poll.
The number entered is the number of times PUs on the Normal list
are polled before PUs on the Slow Poll list are polled. Enter
1
to
disable this option.
Disconnect Threshold (THRESHOLD)
Set the maximum number of response timeouts allowed before a
session is terminated.
Transmit Delay (TX DELAY)
Set the minimum time between transmission frames.
CTS Option
Set the Express 5210
CTS
O
PTION
to
F
OLLOW
RTS
or to be
F
ORCED
O
N
.
Data Format (FORMAT)
Set the
D
ATA
F
ORMAT
to match the attached controller or FEP line
coding. The choices are non-return-to zero (
NRZ
) and non-return-
to-zero inverted (
NRZI
).
When using
NRZI
format, the Express 5210 does not derive timing
from the receive data input.
Address Table (ADDR TABLE)
PU Address
Enter the physical unit address of each SDLC device you wish to
connect to the Express 5210.
Group Address (GROUP ADDR)
Enter the address used for group polling. With this address, the
host can poll the Express 5210 for information on all units
connected to the Express 5210. This address should match the
host's group address. Set this entry to 0 to disable group polling for
the
DTE port.
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