Canon Super G3 FAX Board-AP1, Service Manual

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5
Service Mode
Service Mode
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5-12
Service Mode > Setting of Bit Switch (SSSW) > Bit Switch Composition > SSSW-SW28
Service Mode > Setting of Bit Switch (SSSW) > Bit Switch Composition > SSSW-SW28
■ SSSW-SW28
● Functional Construction
Bit Function 1 0
0 Caller V.8 protocol NO YES
1 Called party V.8 protocol NO YES
2 Caller V.8 protocol late start NO YES
3 Called party V.8 protocol late start NO YES
4 V.34 reception fallback Prohibited Not prohibited
5 V.34 transmission fallback Prohibited Not prohibited
6 not used - -
7 not used - -
Detailed Discussions of Bit 0
Select whether to use the V.8 protocol when calling. If NO is selected, the V.8 protocol is
inhibited at calling and the V.21 protocol is used.
Detailed Discussions of Bit 1
Select whether to use the V.8 protocol when called. If NO is selected, the V8 protocol is
inhibited when called and the V.21 protocol is used.
Detailed Discussions of Bit 2
Select whether to execute the V.8 procedure in case that the ANSam signal from the
reception side is not recognized when originating a call and the existence of the V.8
procedure is informed with the DIS signal from the reception side.
Yes: Transmit the CI signal in a response to the DIS signal of the originating side, and
execute the V.8 procedure.
No: Without transmitting the CI signal in a response to the DIS signal from the reception
side, execute the V.21 procedure.
In case of the manual transmission, the V.8 late start is not executed regardless of this
setting.
T-5-16
Detailed Discussions of Bit 3
Select whether to inform the existence of the V.8 procedure with the DIS signal that is
transmitted after the ANSam signal in case that the ANSam signal at the reception is not
recognized at the originating side.
Yes: Inform the existence of the V.8 procedure with the DIS signal, and execute the V.8
procedure after transmitting the CI signal by the originating side.
No: Without informing the existence of the V.8 procedure, execute the V.21 procedure.
In case of the manual transmission, the V.8 late start is not executed regardless of this
setting.
Detailed Discussions of Bit 4
Select whether the receiver falls back during V.34 reception. If 'Prohibit' is selected, the
receiver does not fall back.
Detailed Discussions of Bit 5
Select whether the transmitter falls beck during V.34 transmission. If 'Prohibit' is selected, teh
transmitter does not fall back.