Verilink Access Manager 2000 (896-502037-001) Product Manual User Manual

Page 220

Configuring the T1 Network

5-96

Access Manager 2000 User Manual

EQP Speed

Type the transmission speed for each port on the next line of the menu.
This rate must be 56 kbps, 64 kbps, or a multiple of either rate. The total
(aggregate) rate for the data ports of all DIU 2130s and DIU 1130s
connected to a CSU cannot exceed 1.536 Mbps. This parameter is
informational only.

64K Mode

If you set this option to

YES

, each channel of the DS1 line carries 64 kbps

of data. If you set this option to

(default setting), each DS0 channel

carries 56 kbps of data. If the data rate of your equipment is a multiple of
56 kbps, set this option to

. If it is a multiple of 64 kbps, set this option

YES

Loop

If you enable this option (Y), the DIU responds to loopback commands.

Scramble

The customer data on a DIU data port may require protection from
unauthorized access.

If scrambling is required, set this option to

YES

on each equipment (EQP)

port. This setting allows the DIU to randomize the data before
multiplexing and sending it to the CSU.

If scrambling is not required, set this option to

(default setting) on the

associated DIU data port.

Be sure to set the

Scramble

option the same way at the far-end NCC,

DIU 1130 so that it can restore the original customer data upon receiving
it.

EQP Clock

Select the timing source for the incoming data from the customer data
equipment. This can be either the

(Transmit Timing) signal from the

data equipment or an internal clock (either ST or inverted ST) generated
by the DIU. If the

lead is not available from the data equipment,

select either

INVERT ST

to have the DIU clock the data in. The

ST choice depends on which clock signal transition is to be used for data