Section 4, User Interface Guide ATLAS 550 System Manual
140 © 2002 ADTRAN, Inc. 61200305L1-1F
MODULES (USSI-2) > PLL/FIFO > PORT
Read security: 5
Indicates the operating port. There are 2 available interfaces on the Dual USSI Option Module.
MODULES (USSI-2) > PLL/FIFO > PLL/FIFO
Read security: 5
Displays the state of the PLL and FIFO systems.
MODULES (USSI-2) > CONFIGURATION
Write security: 3; Read security: 5
All of the following configurable parameters apply to the individual USSI ports.
MODULES (USSI-2) > CONFIGURATION > PRT
Read security: 5
Displays the port number. There are 2 available interfaces on the Dual USSI Option Module.
MODULES (USSI-2) > CONFIGURATION > PORT NAME
Write security: 3; Read security: 5
Accepts any alpha-numeric name up to 16 characters long, to uniquely identify each port on the Dual USSI
Option Module.
MODULES (USSI-2) > CONFIGURATION > CLK +/-
Write security: 3; Read security: 5
Controls the clock used by the ATLAS 550 to accept the transmit (TX) data from the DTE. This is usually
set to
NORMAL. If the interface cable is long, causing a phase shift in the data, the clock can be set to
INVERTED. This switches the phase of the clock, which compensates for a long cable.
MODULES (USSI-2) > CONFIGURATION > DATA
Write security: 3; Read security: 5
Controls the inverting of the DTE data. This inversion can be useful when operating with a high-level data
link control (HDLC) protocol (often used as a means to ensure 1s density). Select either
NORMAL or
INVERTED. Data inversion configuration must match at both ends of the circuit.
L
OCK PLL is locked (This is required to transfer data.)
RXE Receive data FIFO empty.
RXF Receive data FIFO full.
TXE Transmit data FIFO empty.
TXF Transmit data FIFO full.
