3
Modifying A User ........................................................................ 41
3.8
IP Addressing ............................................................................. 42
Unit IP Address........................................................................... 42
Serial Interface IP Address......................................................... 42
Subnet Mask............................................................................... 44
3.9
Name Servers ............................................................................. 44
Domain Name Server (DNS) ...................................................... 44
Windows Name Server (WINS) .................................................. 45
Obtaining Name Server Addresses From PPP Client ................ 45
Obtaining Name Server Addresses From SLIP Client................ 45
3.10 Software Installation Instructions ................................................ 46
Software Installation Procedures Using Your Own
FTP Server ................................................................................. 46
Software Installation Procedures Using Patton’s
FTP Server ................................................................................. 47
4.0
Installation ................................................................................. 49
4.1
Model 2120 Connection .............................................................. 49
4.2
AC Power Connection ................................................................ 49
AC Power Supply (100-240VAC) ............................................... 50
DC Power Supply (36-60VDC) ................................................... 50
5.0
Operation ................................................................................... 51
5.1
LED Status Indicators ................................................................. 51
Rear Panel LEDs........................................................................ 51
Top Panel LEDs ......................................................................... 52
5.2
Flow Control And Session Control .............................................. 53
Flow Control ............................................................................... 53
Session Control .......................................................................... 54
5.3
Using "Show" Commands For 2120 Status ................................ 54
5.4
2120 Utilities ............................................................................... 54
Boot ............................................................................................ 54
EIA232 Connection Closure ....................................................... 55
Ping ............................................................................................ 55
Raw-TCP .................................................................................... 56
Telnet.......................................................................................... 56
Display ARP Table ..................................................................... 56
A
Model 2120 Single Port Terminal Server Specifications ....... 57
A.1
Serial Interface ............................................................................ 57
A.2
Serial Transmission .................................................................... 57
A.3
DCE/DTE .................................................................................... 57
A.4
RS-232 Status Indicators ............................................................ 57
A.5
Ethernet Interface ....................................................................... 57
A.6
Ethernet Standard ....................................................................... 57
A.7
System Status Indicators ............................................................ 57
A.8
Protocols Supported ................................................................... 57
A.9
Management Services ................................................................ 57
A.10 Memory ....................................................................................... 57
