Multi-Tech Systems BL-Series - Manual (Page 112)

112
MultiModemBL User Guide
Switch #7
Request To Send Forced - "RTS"
(Asynchronous/Synchronous Mode/Leased Line/Dial-Up)
If your computer or terminal uses RTS-CTS protocol (typically used in some synchronous
applications, but also if using hardware pacing for V.42 error correction or speed conversion), you
may want to set RTS to function independently of CTS (DIP-Switch #7 UP). For most applications,
especially asynchronous, this switch should be set so that RTS is forced On (DIP-Switch #7 DOWN)
RTS functions Normally = Switch #7 UP
RTS forced On = Switch #7 DOWN
Factory Default Setting = DOWN
Switch #8
Enable/Disable Command Mode -- "Com"
(Asynchronous/Synchronous Mode/Leased/Dial-Up)
In some applications you may want to disable the modem's Command mode so that the modem does
not recognize or react to AT or V.25bis commands. This may be true in strictly auto-answer
applications where no call origination is required. Place DIP-Switch #8 in the DOWN position to
enable Command mode. Place DIP-Switch #8 in the UP position to disable Command mode. The
factory default setting is Command mode enabled.
Disable Command Mode = Switch #8 UP
Enable Command Mode = Switch #8 DOWN
Factory Default Setting = DOWN
Switch #9
Digital Loopback Test
(Asynchronous/Synchronous Mode/Leased Line/Dial-Up)
When in Synchronous mode, this switch controls both Local Digital Loop and Remote Digital Loop
tests while on-line. When the Voice/Data switch is toggled to the Answer mode position (UP) and
DIP-Switch #9 is in the UP position, the modem performs the Local Digital Loopback test. When DIP-
Switch #9 is DOWN and the Voice/Data switch is toggled to Answer mode position (UP), the modem
performs the Remote Digital Loopback test.
Local Digital Loopback Test = Switch #9 UP
Remote Digital Loopback Test = Switch #9 DOWN
Factory Default Setting = DOWN
Switch #10
Leased Line/Dial-Up Operation -- "DDD"
(Asynchronous/Synchronous Mode/Leased Line/Dial-Up)
The modem operates in either leased-line or dial-up modes. This switch controls leased-line/dial-up
operation. Place DIP-Switch #10 in the UP position for Dial-Up operation. Place DIP-Switch #10 in
the DOWN position for Leased-Line operation
Dial-Up Operation = Switch #10 UP
Leased Line Operation = Switch #10 DOWN
Factory Default Setting = UP