Gestetner A265 Service Manual page 666

BIT SWITCHES
SG3 Switch 03
No FUNCTION
4 CTC transmission conditions
0: After one PPR signal
received
1: After four PPR signals
received (ITU-T standard)
5 Modem rate used for the next
page after receiving a
negative code (RTN or PIN)
0: No change
6 Not used
7 Not used
SG3 Switch 04
No FUNCTION
0 Training error detection
to threshold
3
4-7 Not used
A265/A267
CÓPIA NÃO CONTROLADA
0: When using ECM in non-standard (NSF/NSS)
mode, the machine sends a CTC to drop back the
modem rate after receiving a PPR, if the following
condition is met in communications at 14.4, 12.0,
9.6, and 7.2 kbps.
N Transmit N
N
Transmit-
N
Resend
1: When using ECM, the machine sends a CTC to
drop back the modem rate after receiving four
PPRs.
PPR, CTC: These are ECM protocol signals.
This bit is not effective in V.34 communications.
1: The machine's tx modem rate will fall back
before sending the next page if a negative code is
received. This bit is ignored if ECM is being used.
1: Fallback
Do not change the setting.
Do not change the setting.
0 - F (Hex); 0 - 15 bits
If the number of error bits in the received TCF is
below this threshold, the machine informs the
sender that training has succeeded.
Do not change the settings.
4-62
CÓPIA NÃO CONTROLADA
COMMENTS
≤ Re
send
Number of transmitted frames
- Number of frames to be retransmitted
COMMENTS
SM