Brother MFC 9760 - B/W Laser - All-in-One Service Manual page 227

Selector
No.
1
Not used.
2
Delay of FAX line disconnection
3
when switching to the pseudo-
4
ringing external telephone
5
| Not used.
8
NOTE: Selectors 3 and 4 are applicable only to models supporting pseudo-ringing of a connected
external telephone.
l Selectors 3 and 4: Delay of FAX line disconnection when switching to the pseudo-ringing external
When the equipment receives a phone call, it can make the connected external telephone ring (so
called pseudo-ringing). During pseudo-ringing, if you pick up the handset of the external telephone,
the line might be disconnected due to cut-off of the line current.
To hold the line, the equipment may supply line current by making use of the pulse generator circuit
that forms a parallel loop. This way the FAX line disconnection may be delayed. These selectors
determine the delay period.
Selector
No.
1
| Not used.
8
WSW47 (Delay of FAX line disconnection)
Function
telephone
WSW48 to WSW50
Function
Setting and Specifications
No. 3 4
0 0 : 200 ms
0 1 : 400 ms
1 0 : 700 ms
1 1 : 1000 ms
Setting and Specifications
48