Verilink Access Manager 2000 (896-502037-001) Product Manua Uživatelský manuál stáhnout pdf (Strana 222)

100

101

Configuring the T1 Network

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Access Manager 2000 User Manual

Enable TU

Select from one of the following options:

■ If this DIU is receiving a TT input from a data port, then enter Y

for the port with the TT signal. Enter N for all other ports of all

other DIUs in the node. This is necessary because only one bus is

available to carry this clock, and more than one clock source on the

bus causes a synchronization conflict.

■ If E nable TU = , the timing mode is called data equipment

timing. Its application depends on how the connected CSU timing is

configured.

■ For T1-mux applications, configure the CSU: DIU Timing =

DIU; then TT is the timing source for the CSU.

■ For drop-and-insert, configure DIU Timing = TU; then TT is

the timing source for the TIU.

■ If you use any other DIU timing mode, enter N for all ports.

The DIU 2140 Options screen shows the configuration options for

the first DIU 2140 in the specified range.

Figure 5-17 DIU 2140 Option Menu

DIU 2140

Configuration

1 2 ... 217 218 219 220 221 222 223 224 225 226 227 ... 399 400

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