Verilink PRISM 4101 (34-00230) Product Manual Manual do Utilizador descarregar pdf (Página 20)

8 C

HAPTER

2: I

NSTALLATION

assignments. See Appendix B, Customer Service for cable information. The COA

feature works through the supervisory port only.

You can configure the unit firmware through this port as well as the COA feature

on page 45. You may access this port through either a direct VT100 connection or

a dial-up connection via an AT command set compatible modem. The modem

should be configured to ignore DTR, enable auto answer, inhibit command echo,

and return verbose result codes.

If you call the unit and send the BREAK command before receiving the CONNECT

message, the modem will hang-up.

You can perform network management through the SUPV port as well as the LAN

port (page 5) or the SLIP port (page 6). The unit incorporates the full TCP/IP

stack, supports inbound telnet, and has an embedded SNMP agent for trap

reporting or SNMP monitoring and management supporting the DDS specific and

TxPORT enterprise MIBs as listed in Appendix A.

DBU The Dial Backup port is a 10-pin modular connector that either interfaces with an

RS-232 DCE connection on an external device or supplies the connection to the

switched network when the internal Dial Backup option is installed. When the port

is used with an external device, it can interface to a synchronous or asynchronous

device. Configuration of the external device is achieved through AT commands that

are configured in the DBU screen of the terminal interface (page 46). The internal

Dial Backup option can be ordered as either a 33.6 modem or as an ISDN terminal

adapter. Pinout assignments for the DBU port are shown in Table 2-3. Interface

cables can also be ordered from TxPORT (page 62).

✍

Table 2-3

DBU Pinout Assignments

External DBU

Connection

Internal ISDN

Connection

Internal Modem

Pinout

1 Tx Clock In

2DTR In

3RTS In

4 Frame Ground Ground

5 Data In ISDN U-Interface Tip

6 Data Out ISDN U-Interface Ring

7 Signal Ground Ground

8CTS Out

9DCD Out

10 Rx Clock In

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 77 78

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