Verilink PRISM 3000 (34-00184) Product Manual - Manual (Page 40)

PRISM 3000 4-12 Terminal Operation
4.6.3 Port Parameters
The ‘Port Configuration’ screen ( Screen 4-8 ) sets the oper-
ating parameters for each high speed port and the RS232
port, if equipped. The unit does not allow conflicting config-
urations for the DTE ports. Therefore, the selections for
each menu item are restricted to those that do not conflict
with the configuration of other high speed ports or the T1
DTE Port. The default is all channels disabled.
When channel assignment changes are made to the high or
low speed ports, to the remote communication link, or to the
T1 DTE, the PRISM unit reestablishes the mapping of all
channels. This interruption to traffic will normally result in a
brief burst of data errors on other ports.
Channel Allocation: This field is described in detail on the
previous page .
Port #: Selects the port to be configured, from [ One ] to
[ Four ] (Note: The RS232 port can use only ports 1 and 3).
Rate Multiplier: The unit can operate at any data rate that
is a multiple of 56 or 64 kb/s. When ‘
N x 64K ’ is selected,
the ones density requirements of the T1 network line must
be ensured. When ‘
N x 56K ’ is selected, the unit maintains
ones density for the selected DS0 channel.
DS0 Channel Assignment: Selects whether the DTE chan-
nel assignment will be made as a ‘
CONTIGUOUS ’ group or
as ‘ ALTERNATE ’ channels. Selecting ‘ ALTERNATE ’ will
assure ones density. Note: the RS232 port can use only the
‘
CONTIGUOUS ’ mode.
Start Channel #: The starting channel in the 24-channel
DS1 bit stream must be selected in this field. The unit then
assigns the following channels automatically according to
the bit rate and the mode selected in ‘ DS0 Channel
Assignment ’. The choices are ‘ 1 ’ through ‘ 24 ’.
Port Rate (high speed port): Selects the required port bit
rate in increments of 56 or 64 kb/s, depending on the ‘
Rate
Multiplier ’ setting. The ‘N’ multiplier ranges in value
from ‘ 0 ’ to ‘ 24 ’.
Port Rate (RS232 port): The choices are: ‘ None ’, ‘ Syn-
chronous ’, ‘ 1200 ’, ‘ 2400 ’, ‘ 4800 ’, ‘ 9600 ’, ‘ 14400 ’,
‘ 19200 ’, ‘ 28800 ’, ‘ 38400 ’, ‘ 48000 ’, ‘ 56000 ’, and
‘ 64000 ’.
# of Channels (high speed ports only): Displays the num-
ber of channels to be passed through to the T1 DTE. This
number is determined by the selection in ‘
Port Rate ’.
Transmit Clock: This field is used to select the clock that
the unit will use to sample the data transmitted from the
DTE. When set to ‘
INTERNAL ’, the data is sampled directly
with the transmit data clock that is also supplied to the DTE
as Transmit Clock. The ‘
EXTERNAL ’ option uses the exter-
nal clock supplied by the DTE. The external clock for the
RS232 port is only valid at 56 or 64 kb/s. The ‘
OVERSAM-
PLED ’ option is used to operate the port as a low speed
asynchronous port. In this mode, the port rate should be set
to at least 3 times the asynchronous data rate (depending on
the degree of allowable distortion for the particular DTE
equipment used).
V.54 Loop: Selecting ‘ Enable ’ allows the unit to respond
to inband V.54 loop commands. If ‘ Disable ’ is selected,
the unit ignores these commands.
Invert Data: In the invert mode ( YES ), transmit and receive
data are inverted at the port interface. This function may be
used as a means of guaranteeing ones density when the data
3000 DSU x.xx/x.xx PRISM 3000 Date: MM/DD/YY
No Far End Response Birmingham: (151) Time: HH:MM:SS
----------------------------- TCP/IP Configuration -----------------------------
Ethernet 255.255/X.XX
Element: [NEAR] (RESET LAN INTERFACE)
PRISM I.P. Address (000.000.000.000)
Subnet Mask (000.000.000.000)
Router I.P. Address (000.000.000.000)
Filter I.P. Address (000.000.000.000)
Filter I.P. Address (000.000.000.000)
Filter I.P. Address (000.000.000.000)
Filter I.P. Address (000.000.000.000)
Filter I.P. Address (000.000.000.000)
Filter I.P. Address (000.000.000.000)
Filter I.P. Address (000.000.000.000)
Filter I.P. Address (000.000.000.000)
Screen 4-9 TCP/IP Parameters