Digital Link DL3800 DS1, Руководство пользователя

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Installation 3-5
3
ASCII T
ERMINAL AND
SNMP C
ONNECTION
The DL3800 is accessed by an ASCII terminal or SNMP Management
System workstation through direct, daisy-chained, or dial-up modem
connection.
On the rear panel of the DL3800, two socket DE-9 receptacles labeled NMS
and COMM PORT are provided for connection to the SNMP workstation or
ASCII terminal, respectively. An RS-232 straight ribbon cable with DE-9
plug connectors is used to link the DL3800 with the terminal, modem, or
workstation.
Direct Connection
For direct connection, using the appropriate DE-9 ribbon-type cable,
connect the ASCII terminal or SNMP workstation to the DL3800 through
the Terminal or SNMP connector on the back of the rear panel. The baud
rate, parity bit and stop bit settings must match those of the terminal:
baud rate, 9600; eight bits, no parity and two stop bits.
Modem Connection
When using a modem, the baud rate, parity bit and stop bit settings of the
modem must match the terminal or workstation port default settings:
baud rate 9600; eight bits; no parity, and two stop bits. If these
parameters are not the same, reconÞgure the Unit default settings using
the front panel controls.
When the parameters of the modem and the terminal or workstation port
coincide, using the RS-232 straight ribbon cable, connect the modem to the
appropriate RS-232 comm port (
COMM PORT
or
NMS
) on the rear panel of
the DL3800. Then, connect the modem to the phone line and the ASCII
terminal or SNMP workstation. DE-9 to DB-25 adapters and null-modem
adapters are available from Digital Link. Specify a plug or socket terminal
connection when ordering.
For direct connection, the terminal, workstation, or modem may be placed
up to 50 feet away from the comm port when operating at 9600 baud.
Distances may be increased if the baud rate is reduced.
Telnet Connection
For a telnet connection, connect a device that provides a SLIP connection to
the NMS port of the DL3800. Examples include a terminal server, router
auxiliary port, or the Digital Link Management Access Processor (MAP) Be