ADTRAN ATLAS 800 SERIES User Manual download pdf (Page 32)

Chapter 3. Operation

32 ATLAS 800 Series Video Module User Manual 61200773L1-1A

PLL/FIFO Displays the Phase Lock Loop (PLL) and FIFO status.

ONFIGURATION

All of the following configurable parameters apply to the individual Video Module

DTE ports.

Displays the port number.

ORT

AME

Accepts any alpha-numeric name up to 16 characters long, to uniquely identify

each DTE port on the Video Module.

+/-

Controls the clock used by the ATLAS 800 Series to accept the transmit (TX) data

from the DTE. This is usually set to N

ORMAL

. 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.

ATA

Controls the inverting of the DTE data. This inversion can be useful when operat-

ing with a high-level data link control (HDLC) protocol (often used as a means to

ensure 1s density). Select either N

ORMAL

or I

NVERTED

. Data inversion configura-

tion must match on both ends of the circuit.

CTS

Determines the behavior of the Clear To Send (CTS) signal. If set to N

ORMAL

, CTS

will follow the value of Request To Send (RTS). If set to F

ORCED

, CTS will

always be asserted.

DCD

Determines the behavior of the Data Carrier Detect (DCD) signal, also called

RLSD on some interfaces. If set to N

ORMAL

, DCD will generally be asserted when

the interface is capable of passing data (consult the appropriate ATLAS 800 Series

User Manual for exact conditions.) If set to F

ORCED

, DCD will always be

asserted.

DSR

Determines the behavior of the Data Set Ready (DSR) signal. If set to N

ORMA

DSR will generally be asserted when the interface is capable of passing data. If set

to F

ORCED

, DSR will always be asserted.

ORT

Indicates the operating port.

PLL/FIFO Displays the state of the PLL and FIFO systems.

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

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