Specifications

8
MULTI-FUNCTION LINE DRIVER
SW1 Position 8: Carrier-Control Method
Set position 8 of switch SW1 to determine whether the carrier is “constantly
on” or “controlled by RTS.” In the “controlled by RTS” setting, the Switch can
support switched-carrier, multipoint, or hardware flow-control applications.
SW1-8 Carrier
Off Constantly ON (default)
On Controlled by RTS
3.3 Configuration Switch “S2”
Use the individual positions on DIP switch S2 to set word length, signaling-
rate range, RTS/CTS delay, or 2- or 4-wire operation, as well as to control
diagnostic testing. The factory-default settings are summarized in Table 3-2
below.
Table 3-2. Switch SW2 Summary
Position Function Default Setting
SW2-1 Word Length Off
10 bits
SW2-2 Word Length Off
SW2-3 Signaling-Rate Range Off -2.5 to +1%
SW2-4 RTS/CTS Delay On
7 ms
SW2-5 RTS/CTS Delay On
SW2-6 2-Wire/4-Wire On
4-wire full duplex
SW2-7 2-Wire/4-Wire Off
SW2-8 V.52, V.54 Tests Off Tests Enabled