Bit Switches 
SM 91 D361 
Fax Option 
Type 3350 
D361 
Communication Switch 00 (SP No. 1-104-001) 
No  Function  Comments 
0: Disabled 
1: Enabled 
polling ID code of the remote 
terminal does not match the polling 
ID code of the local terminal. This 
function is only available in 
NSF/NSS mode. 
 
Communication Switch 01 (SP No. 1-104-002) 
No  Function  Comments 
0 
ECM 
0: Off 1: On   
If this bit is set to 0, ECM is switched off for all 
communications. 
In addition, V.8 protocol and JBIG compression 
are switched off automatically. 
1  Not used  Do not change the setting. 
Wrong connection prevention 
method 
Bit 3  Bit 2  Setting 
0 0 None 
0  1  8 digit CSI 
1  0  4 digit CSI 
1 1 CSI/RTI 
2-3 
  
(0,1): The machine will disconnect the line 
without sending a fax message, if the last 8 
digits of the received CSI do not match the last 
8 digits of the dialed telephone number. This 
does not work when manually dialed. 
(1,0): The same as above, except that only the 
last 4 digits are compared. 
(1,1): The machine will disconnect the line 
without sending a fax message, if the other end 
does not identify itself with an RTI or CSI. 
(0,0): Nothing is checked; transmission will 
always go ahead. 
 
  This function does not work when 
dialing is done from the external 
telephone.