Verilink PRISM 3000 (34-00184) Product Manual Manual de usuario descargar pdf (Pagina 40)

PRISM 30004-12 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 ‘Nx64K’ is selected,

the ones density requirements of the T1 network line must

be ensured. When ‘Nx56K

’ 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)

Screen 4-9 TCP/IP Parameters

1 2 ... 35 36 37 38 39 40 41 42 43 44 45

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