WSW09 - Page 276

 App. 

4-13 

Confidential

WSW09 

(Protocol definition 1)

Selector 

No. 

Function 

Setting and Specifications 

1 

Frame length selection 

0: 

256 octets 

1:  64 octets 

2 

Use of non-standard 
commands 

 0: 

Allowed 1: 

Prohibited 

3 

4 

No. of retries 

No. 3 

4 

 0 

0 

: 

4 

times 

 0 

1 

: 

3 

times 

 1 

0 

: 

2 

times 

 1 

1 

: 

1 

time 

5 

T5 timer 

0:  300 sec. 

1:  60 sec. 

6 

T1 timer 

0:  35 sec. 

1:  40 sec. 

7 

8 

Timeout for response from 
the called station in 
automatic sending mode 

No. 7  8 
 

0  0 

:   55 sec.  (in U.S.A. and Canadian 

models) 

 60 sec.  (in other models) 

 0 

1 

: 

140 

sec. 

1  0 

:   90 sec. 

1  1 

:   35 sec. 

NOTE:

  Selectors 1 through 5 are not applicable in those models which do not support ECM. 

  Selector 1:  Frame length selection 

Usually a single frame consists of 256 octets (1 octet = 8 bits).  For communications lines with  
higher bit error rate, however, set selector 1 to "1" so that the machine can divide a message into  
64-octet frames. 

Remarks

: The error correction mode (ECM) is a facsimile transmission manner in which the  

machine divides a message into frames for transmission so that if any data error occurs  
on the transmission line, the machine retransmits only those frames containing the error  
data.

  Selector 2:  Use of non-standard commands 

If this selector is set to "0," the machine can use non-standard commands (the machine’s native- 
mode commands, e.g., NSF, NSC, and NSS) for communications.  If it is set to "1," the machine  
will use standard commands only.

  Selectors 3 and 4:  No. of retries 

These selectors set the number of retries in each specified modem transmission speed.

  Selector 5:  T5 timer 

This selector sets the time length for the T5 timer.

  Selector 6:  T1 timer 

This selector sets the time length for the T1 timer.

  Selectors 7 and 8:  Timeout for response from the called station in automatic sending mode 

If the machine (calling station) receives no response (no G3 command) from the called terminal in  
automatic sending mode for the period specified by these selectors, it disconnects the line.