Cabletron Systems CSMIM-T1 Manual De Usuario

Descargar
Página de 198
Chapter 1: INTRODUCTION
1-10
CSMIM-T1 Hardware Installation Guide
1.6.8
EFS 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.
1.7
CONNECTIVITY
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.
1.8
TELCO 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.
1.8.1
Connecting 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.