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Paradise P300 User Manual

Page 217

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Text on Display

Description / Cause / Notes

Relays

To Terr

To Sat

Other

P300H

P300 Series Installation and Operating Handbook

Page 217

TX TRAFFIC FAULTS

(Top line of display)

Tx Traffic Faults: Tx OK LED Off and Tx Traffic (prompt) relay.

Tx Warn: Reconfiguring Tx path

The modem is reconfiguring the Tx path (after a user parameter change).

Tx Fault: off, terr not

depends on the interface in use (eg RS422 DCE=”TR”, V.35=”DTR”). This is a DC control

T

TF

ready

line which is used to indicate the terrestrial equipment is functioning properly. The switching
off may be user set to cause this fault or be ignored (Change, Terr-Int, Control Lines).See note 5.

Opt

Opt

Tx Fault: off, nothing to send

depends on the interface in use (eg RS422 DCE=”RS”, V.35=”RTS”). This is a handshake

T

CM

line which is used to indicate the terrestrial equipment has data to send. The switching off

TF

may be user set to cause this fault or be ignored (Change, Terr-Int, Control Lines). The Modem can
be set to mute the Tx carrier if this line is off (Change, Tx, Mod, Carrier). If carrier is set to mute
when this line is off but this line is set to ignore, then there is no alarm when this line mutes the
carrier. See note 5

Opt

Opt

Tx Fault: No clock from interface

The modem is set to use the “Tx Clock In” (Change, Tx, Clocking), but no clock is being provided.

T

TB

SA,SC

TF

The clock generation will use the internal clock as a backup to maintain the carrier and any
framing/ESC integrity. Check the data connector is attached and for activity on the clock input lines

Tx Fault: Data input is all ones (AIS)

The data supplied to the modem is all ones (AIS). This is normally used to indicate an upstream

T

TB

SA

,

equipment fault, it is not a modem fault. See note 4

SC

Opt

Opt

Opt

Opt

Tx Fault: No Incoming Octet Timing

This message is only displayed if a 64kbps G.703 card is fitted. It indicates the card has detected

T

that there is no incoming octet timing on the G.703 signal. The monitoring of this octet timing may be
enabled and disabled with Change, Terr-Int, Card Specific.

Opt

Tx Fault: Frame sync lost on Tx input

The modem only detects frame sync when the Drop mux is active (or 2048k IBS G.732 0% overhead

T

TB

SA,SC

mode is enabled). Check the bearer type is specified correctly (Change, Tx, Baseband, Drop). This
normally only occurs if either there are significant errors on the terrestrial link, or if it is supplied with
AIS and the modem is set to ignore AIS. Check that the AIS detector is not disabled with Change,
User-Opt, Operation, Actions, AIS. ALSO there is an option to make the modem re-seek frame sync
if CRC sync is lost (Change, User-Opt, Operation, Terrestrial, PCM Bearer CRC, CRC/Frame Acq’).
Check the modem is not set to expect a CRC and forcing frame re-acquisition if CRC is lost, but
there is no CRC on the PCM signal.

Tx Fault: TS16 MF sync lost on Tx input

The modem only seeks TS16 Multiframe sync when the Tx baseband is set to use the Drop mux in a

T

(TB/TE)

SC

G.732 mode and CAS signalling has been selected (or 2048k IBS G.732 0% overhead mode with

Note 1

CAS is enabled). Check that a CAS multiframe is present on the PCM signal applied to the modem
(ie terrestrial TS16 contains the 16 frame multiframe sequence).