Enterasys Networks CSX7000 User Manual download pdf (Page 81)

100

101

Central Site Remote Access Switch 81

RDERING

ISDN S

ERVICE

(US O

NLY

)

Ordering BRI ISDN Lines using Provisioning Settings

is ordered, the customer may be asked for the FCC registration number for the type of CSU that is

being used. The CSU should support ESF framing and B8ZS line encoding.

The cabling between the CSU and the CyberSWITCH is very important, and is also where most

problems occur. The system’s PRI RJ-45 adapter uses the international standard of pins 3, 4, 5, and

6 for transmit and receive. Most T1 lines in the United States use the traditional 1, 2, 4, and 5 pins.

We provide an RJ-45 to RJ-45 Adapter that will convert between the two wiring systems. The

customer may still need a special cable to connect from a RJ-45 jack to a DB-15 connector, if that is

what the CSU provides.

Otherwise, a standard 4 or 8 wire cable with RJ-45 jacks is sufficient between the Adapter and the

CSU.

When the line is installed, the customer must ask the phone company the following questions:

1. What are the phone numbers for the line? (There may be more than one.)

2. Do I need to use any prefix when I dial? (For example, “9” for a Centrex line.)

RJ-45

Adapter

4 Wire

CSU

Local or

InterExchange Carrier

T1 Line

US Only

CSX5500

RJ-45

Pinout

Adapter

RJ-45

Pinout

Primary Rate Adapter

RJ-45 Jack

Primary Rate Board

TX+

RX+

RX-

TX-

RX+

RX-

TX+

TX-

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Enterasys Networks CSX7000 User Manual Page 81

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