DCB V.23 빠른 시작 매뉴얼 - 페이지 2
{카테고리_이름} DCB V.23에 대한 빠른 시작 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. DCB V.23 9 페이지. Async modem
1.
DESCRIPTION
The V.23 modem operates at 0 to 1200 bps asynchronous, with FSK
modulation. It uses the latest DSP modem circuitry to insure
excellent performance and future availability. It has 900 hz soft
carrier turn off for multidrop applications and an anti-streaming
option. Standalone and PC half card configurations are available.
The PC card uses the internal ISA bus for power and ground. The PC
card fits into a 20 slot rack mount chassis that is only 7" high. The
phone line connector is an RJ-11 for 2 wire or 4-wire leased line
operation. Transmit is on positions 3 and 4, receive 2 and 5 of the 6
position jack. For 2-wire operation, a special cable configuration is
required (see Section 5).
The modem has DIP switch controls for reset, anti-streaming, phase
equalizer, constant or controlled carrier, soft carrier turn-off, 2-wire
or 4-wire line, transmit level and loopback. The modem also has a
pushbutton switch for local digital loopback. The DIP switches are
accessible from the front of the modem. A pushbutton loopback
switch is located on the rear of the unit.
V.23 ASYNC MODEM
POWER
TXD
RXD
RTS
CTS
DCD
TEST
TERMINAL
TELCO
POWER
LOOP
12VDC
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