Lines Settings
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Status |
Status of the line as reported by the PortMaster, up (active) or down (inactive). |
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Status 2 |
The status of layer 2, as reported by the PortMaster, up or down. |
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Line Type |
Note - T1 and E1 settings are mutually exclusive and depend on the PortMaster mode. ISDN Uses the line as PRI B channels (default). ISDH-Fractional Divides an ISDN line into groups. T1 Uses the entire line as a T1 line. E1 Uses the entire line as an E1 line. FRACTIONAL Divides a T1 or E1 line into groups. INBAND Sets the line for inband signaling for channelized T1 and E1. Signaling must also be set. IMT Sets a line connected to an intermachine trunk (IMT) for Signaling System 7 signaling. |
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Groups |
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Signaling |
When the line type is inband---for channelized T1, channelized E1, or intermachine trunk (IMT)---the type of inband signaling protocol in use: trunk e&m wink start E & M wink start protocol, for use with T1 lines (T1 default). trunk e&m immediate start E & M immediate start protocol for use with T1 lines. fxs loop start Foreign exchange station (FXS) loop start protocol for use with T1 lines. |
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Profile |
Number identifying a multifrequency R2 (MFR2) signaling profile for channelized E1 lines with in-band signaling used as follows in a particular country or countries: 0 ITU-T standard used in Argentina, Saudia Arabia, and other countries. 1 Mexico. 2 Brazil and Tunisia. 3 Venezuela. 4 Mexico. Profile 4 is a subset of profile 1 used with switches that do not support caller ID. This profile can be used in Mexico wherever profile 1 is used, but the inverse is not true. |
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Framing |
Framing format in use for the T1 or E1 line: ESF Extended superframe---default for T1. D4 D4 framing, alternative format for T1. CRC4 Cyclic redundancy check 4---E1 default. FAS Frame Alignment Signal---alternative format for E1. NONE |
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Encoding |
Encoding method in use for T1 and E1 lines: b8zs Bipolar 8-zero substitution---T1 default. ami Alternate mark inversion. hdb3 High-density bipolar 3---default for E1. |
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PCM |
Pulse code modulation (PCM), a digital encoding method used for analog signals. Change this setting only if required by your PRI service provider. U-LAW Default method of analog-to-digital conversion used for T1 PRI lines. A-LAW Default method of analog-to-digital conversion used for E1 PRI lines. |
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Loopback |
If enabled, you can test the telephone line of your T1 or E1 ISDN connection by setting the local network loopback. |
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Clocking |
Sets the source for the clock signal for the T1 expansion card. Line0 line0 or Line1 Line2 T1 expansion card. Internal Selects the built-in 1.544Mhz crystal to drive the line. This setting is used for dry wire configurations or back-to-back connections. External Built-in digitial service unit (DSU) channel service unit (CSU) extracts the clock signal from the line. This is the default. |
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Line Source |
See Clocking |
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External Source |
See Clocking |
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NFAS Type |
NFAS setting for this T1 line. Details |
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NFAS Group |
Group number. An integer between 1 and 99. Details |
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NFAS Interface |
Interface number. An integer between 0 and 19. Details |