Chapter 3. Operation
61200142L1-1 Dual Nx56/64 Option Module User Manual 3-7
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 versus the number of DS0s
appear in the DTE Data Rate Chart appendix of the TSU
100 User Manual.
Choices: 56K or 64K
Transmit Clock (TX CLK)
Controls the clock used by the TSU 100 to accept the
transmit (TX) data from the DTE. This is usually set to
NORMAL. If the interface cable is long and causes a
phase-shift in the data, the clock can be selected as
INVERTED. This switches the phase of the clock, which
should compensate for a long cable.
Choices: Normal; Inverted
Data
Used to control the inverting of the DTE data. This
inversion can be useful when operating with a high level
data link (HDLC) protocol. Often used as a means to
ensure 1s density.
Choices: Normal or Inverted
Clear to Send (CTS)
Used to control characteristics of CTS.
Choices: Normal or Force On (see Table 3-1 on page 3-8).
Data Carrier Detect (DCD)
Indicates to the DTE when a valid signal is being
received at the Network Interface.
Choices: Normal or Force On (see Table 3-1 on page 3-8).
Data Set Ready (DSR)
This signal indicates to the DTE when the DCE is turned
On and ready for operation.
Choices: Normal or Force On (see Table 3-1 on page 3-8).
Table 3-1 on page 3-8 shows conditions which cause the
port control signal to be deactivated