Cabletron Systems CSMIM-T1 manual EFS Key Number, Connectivity, Telco Connection Information

Chapter 1: INTRODUCTION

1.6.8EFS Key Number

The sticker on the front panel next to the serial number is the EFS Key. This key is factory loaded and enables all options on the module. The EFS value is stored in the EEPROM, and will be erased when executing the “erase” command. It is important that you record this value, in the event you need to clear the EEPROM. To re-enter the key value, refer to the procedure in Chapter 2, section 2.7.3.

1.7CONNECTIVITY

Ethernet Interface Selection

The CSMIM-T1 has a 48 pin DIN connector for connection to the A Channel Ethernet segment, and a 96 pin DIN connector for B and C channel attachment. Segment selection is performed by setting jumpers, but may be overridden by commands from the MMAC management module.

Jumper position and channel selection is explained in Chapter 2, Installing the CSMIM-T1.

1.8TELCO CONNECTION INFORMATION

There are different ways the CSMIM-T1 can be set up. It can use either a full T-1 line, or a fractional one. In either case, there is specific information the user needs to get from and provide to the Telco providing the connection. This section supplies some of the basic information necessary to set up a T-1 connection.

1.8.1Connecting the CSMIM-T1 to a Full T-1 Line

In a full T-1 application, all channels of the line are used in the same manner, such as data lines for multiple computer ports. There is no peeling off of any channels, and the Drop and Insert Port is not used. Table 1-1 provides a short list of information necessary to configure a full T-1 circuit in a Point-to-Point Protocol (PPP) environment. Configurations may vary depending on the application.

1-10 CSMIM-T1 Hardware Installation Guide