Chapter 3. Operation
3) PORT, SUBMENU OF CONFIG
The menu item PORT is used to select and then to configure the parameters associated with the V.35.
1.Follow standard operating procedure to access 3)PORT.
2.Press ENTER. The first nine submenu items appear.
3.Continue with standard operating procedures.
RATE 56/64
This sets the base rate of the interface. The actual data rate depends on the number of DS0s assigned to the Nx port. The DTE data rate vs. the number of DS0s appear in Appendix II. Choices: 56K or 64K
CHANNELS
This sets the unit to use alternate or contiguous channels in the T1 data stream. If greater than 12 channels are used, then contiguous must be used. If not, then alternate channels may be used to meet pulse density requirements (only necessary for Nx 64 without B8ZS). If other than a private network, the carrier must be notified of this choice.
Choices: ALT or CONT
DTE TX CLK
Controls the clock used by the TSU to accept the transmit (TX) data from the DTE. Normally this is set to INTERNAL. If the interface cable is long causing a phase shift in the data, the clock can be selected as INT/INV (Internal/Inverted). This switches the phase of the clock which should compensate for a long cable. If the DTE provides a clock with TX data, the clock selection is set to EXTERNAL. The TSU will depend on an externally supplied clock to accept the TX data.
Choices: INTERNAL,
START CHAN
Used to select the channel in which the T stream will start. The setting must be consistent with the carrier if using a public network.
Choices: 01 through 24
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