6.6.2 Electrostatic Discharge
Precautions
Observe the following precautions when
handling printed wiring boards (PWBs) in the
terminal.
•
Always use the ESD kit (600T42001) when
handling PWBs. If one is not available, use
the following procedure.
Before handling any PWB, ground yourself
to an earth or building ground. Use a key
or paper clip in your hand to transfer the
charge from you to ground. Do this every
few minutes for prolonged work on PWBs.
•
Keep PWBs in the antistatic bags or
original packaging until ready to install
them.
•
Return or store the PWBs in the original
packaging, including antistatic bags.
•
When handling the PWBs, handle them by
their edges.
•
When handling integrated circuit chips,
handle them only by the body and never
by the leads (legs). If available, keep them
in antistatic foam until ready to install.
•
Never place the PWBs, integrated circuit
chips or components on a metal surface.
6.6.3 Glossary of Mnemonics
CED
Called Station Identification
CFR
Confirmation to Receive
CIG
Calling Subscriber Identification
CNG
Calling Tone
CRP
Command Repeat
CSI
Called Subscriber Identification
DCN
Disconnect
DCS
Digital Command Signal
DE6
1650 Hz. Signal Detection
DE8
1850 Hz. Signal Detection
DIS
Digital Identification Signal
DTC
Digital Transmit Command
DTMF
Dual Tone Multiple Frequency
EOM
End of Message
EOP
End of Procedure
EQM
Line Quality
FCD
Facsimile coded data
FCS
Frame checking sequence
FIF
Facsimile Information Field
FTT
Failure to Train
GC
Group Command
GI
Group Identification
HDLC
High Level Data Link Control
LCS
Line Conditioning Signal
MH
Modified Huffman
MCF
Message Confirmation
MPS
Multi-Page Signal
NSC
Non-Standard Facilities Command
NSF
Non-Standard Facilities
NSS
Non-Standard Set-Up
PHP
Phasing Period
PIN
Procedural Interrupt Negative
PIP
Procedural Interrupt Positive
PIS
Procedure Interrupt Signal
PIX
Picture data (pixel)
PRI-EOM Procedure Interrupt-EOM
PRI-EOP Procedure Interrupt-EOP
PRI-MPS Procedure Interrupt-MPS
RTN
Retrain Negative
RTP
Retrain Positive
RL EQL
Receive Link Amplitude Equalizer
T2 EQL
Two baud taps Equalizer
TCF
Training Check
TRN
Train
TSI
Transmitting Subscriber
Identification
TL EQL
Transmit Link Amplitude Equalizer
ZZF
German Configuration 6 Standards
ECM Mnemonics
CTC
Continue to Correct
CTR
Response for Continue to Correct
EOR
End of Retransmission
ERR
End Retransmission Response
FCF
Facsimile Control Field
PPR
Partial Page Request
PPS
Partial Page Signal
RR
Receive ready
RNR
Receive not ready
6/92
Telecopier 7032 / 7033 Service Manual
6-25
6.6.2, 6.6.3
www.printcopy.info
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