Port type, Physical por t i nterface, Bl ocked port flag – Cabletron Systems 1800 User Manual
Page 188: X.3 line speed

12-10
SmartSwitch 1800 4. 0 User G uide, Rev 01
1
At line speeds of 38.4K bps or higher,
RTS/CTS H/W Flow Contr ol
should be
Y
.
2
If
1
(Transparent Polled Async HPAD) or
2
(Transparent Polled Async TPAD), con-
figure this async port as one end of an HPAD–TPAD PVC.
3
If
Assemble Ful l Message
is
Y
, the remote device must be configured to generate M-bit
packets.
4
The
Default Call ing Address
is relevant only if
Disable X. 121 User Cal ls
is
N
.
5
The
Called Address
is relevant only if
Autocall
is
Y
.
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
.
●
Port 0 is always
RS-232
.
●
Port 1 is
RS-232
or
DSU
, depending on whether the optional CSU/DSU card is
installed.
●
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 disabled (
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 Menu) or disable (
[B], [B], [A]
from the Main Menu) is performed.
X.3 Line Speed
is the data transmission rate in bits per second. Specify the line speed that matches (as
closely as possible) the configuration of the device connected to the port.
Selecting this item displays a list of valid line speeds. To specify a speed, press the
letter corresponding to the speeds. Valid speeds are:
50
75
75/1200
100
110
134.5
150
200
300
600
1200
1840
2400
4800
9600
19.2K
38.4K
57.6K
Autobaud
Selecting
Autobaud
causes the line speed to be read from the first trans-
mission from the async device, then set automatically.
Async PAD Options
0–2
2
0
(X.3)
PAD Type 0,2:
1
PAD Type 1:
1–16
1
Y/N
3
Y
0
0
(use PAD profile)
not currently used
n/a
0
(none)
0
(none)
Table 12-3 Async Port Parameters
Parameter
Valid Values
Default Value
(continued)