3Com REMOTE ACCESS SYSTEM 1500, Management Manual

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140 C
HAPTER
10: A
DVANCED
M
ODEM
C
ONFIGURATION WITH
CLI/AT
COMMANDS
Configuring Link
Option Settings
This section explains how to change the settings that affect link options
between the RAS 1500 module and the modems it connects to.
Link Speed Index The following table shows the index number used in configuring both
minimum and maximum connect speeds. Refer to Table 34 obtain the
correct index number when configuring link speeds.
Table 34 Link Speed Index Numbers
Setting the Highest Possible Connect Speed
The &N command allows you to set the highest possible connect speed.
When a remote modem connects to an RAS 1500, it limits the maximum
speed of the connection based on the value specified with &N. If the &U
argument is zero, the connection is limited to the single speed implied by
the &N argument.
Example:
AT&N16 configures the highest possible connect speed to 33600 bps.
AT&U6 configures the lowest possible connect speed to 9600 bps.
Link Speed Index Link Speed Index Link Speed Index
Highest Speed 0 33600 16 48000 32
300 1 28000 17 49333 33
1200 2 29333 18 50666 34
2400 3 30666 19 52000 35
4800 4 32000 20 53333 36
7200 5 33333 21 54666 37
9600 6 34666 22 56000 38
12000 7 36000 23 57333 39
14400 8 37333 24 58666 40
16800 9 38666 25 60000 41
19200 10 40000 26 61333 42
21600 11 41333 27 62666 43
24000 12 42666 28 64000 44
26400 13 44000 29
28800 14 45333 30
31200 15 46666 31