Table 14: Fields in T1 Physical Layer Tab Window
Field | Description |
|
|
Clocking | Sets the transmit clock on the interface. |
|
|
Line Buildout | Sets the distance at which an interface drives a line. Default |
| setting is 0 - 132 feet. |
|
|
Line Encoding | Sets the line encoding format on the interface: |
| Auto Mark Inversion |
| |
|
|
Bye Encoding | Sets the byte encoding on the T1 interface to use 7 bits per |
| byte or 8 bits per byte. Default is 8 bits per byte. |
|
|
Frame Checksum | Sets the size of checksum. Default is 16. |
|
|
Framing Mode | Sets the framing format. Default is Extended mode. |
|
|
Idle Cycles Flag | Sets the value that the interface transmits during idle cycles. |
| Default setting is 0x7E: |
| 0x7E (flags) |
| 0xFF (ones) |
|
|
Start/End Flags | Sets the transmission of start and end flags to either filler or |
| shared. The default is filler. |
|
|
Invert Data checkbox | Enables inverted transmission of unused data bits. |
|
|
Loopback Respond checkbox | Enables loopback on the T1 interface from the remote channel |
| service unit (CSU). |
|
|
Time Slots | Sets the use of time slots on a T1 interface. Default is 0, all 24 |
| time slots used. |
|
|
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