User guide

2-2 Solo E1 DSU User Guide—June 1998

Terminal and DIP Switch Mode

On the rear of the standalone and/or the module board are two DIP switch

banks. DIP switch S2-12 allows the mode choice shown in Table 2-1.

After you assign an IP address to the Solo E1 DSU from a terminal, you can

also use Telnet or SNMP to log on to the Solo E1 DSU.

Cable Requirements

Table 2-2 lists the general communication cable requirements for the

standalone and module. (For Digital Link equipment model numbers and

descriptions, refer to the tables in ÒCable ConnectionsÓ on page 2-12, and

to Table A-10 on page A-5.)

Table 2-1 DIP Switch S2-12 Description

Switch Position Mode Description

Up Terminal Allows you to modify device conﬁguration,

monitor status, and perform tests.

Down

(default)

DIP Switch Allows you to monitor device status, and

perform minimal testing.

Table 2-2 Solo E1 DSU Cabling Equipment Requirements

Cabling Equipment Description

One of:

¥ Comm port cable (with a DE-9

male connector on one end)

¥ Multi-drop ribbon cable with

multiple DE-9 connectors.

¥ DE-9 to DB-25 adapters and

null-modem adapter

¥ To connect a terminal, modem or

SNMP workstation

¥ To connect multiple Solo E1 DSUs

in a daisy chain (for centralized

management)

¥ For connection to other DTE

devices

DTE interface cable DB-25 male connector to the Solo E1

DSU and V.35 connector to the DTE

(depends on required interface)

Network port cable BNC or DA-15 male connector to the

Solo E1 DSU. Standard. (Digital Link

can provide 4.57 m (15 ft) or 7.62

m (25 ft) cables or a DA-15/RJ-48S

adapter.)