CXR AJ 2885P, Руководство пользователя

Страница: 20 / 49

User's Manual V34bis Fax-modem - AJ 2885 P
AJ 2885 P - Page 20
The following table list these functions:
LED Circuit Function
DTR
(Data
Terminal
Ready)
108 Indicates that the data terminal equipment connected to the
modem is ready for data communication.
On if DTR is set or fllashing if DTR-108 is not set.
Bad Eprom checksum during self test.
DSR/RI
(Data
Set Ready/Ring
Indicator)
107/125 Flashes when an incoming ring is received (125/RI). Remains
lighted permanently when connecting. On leased line, the
Originate modem flashes 10 times per second and the Answer
one 4 times per second, when waiting for carrier. Also bad
RAM causes flashing of light during power up test.
CD
(Carrier
Detect)
109 Indicates that the remote modem's carrier signal has been
received by the modem. In test mode, this light will flash if the
test is negative. Also on if bad non volatile ram checksum
during power up test.
TXD
(Transmit
Data)
103 Flashes as data is transmitted by the modem.
RXD
(Receive
Data)
104 Flashes as data is received by the modem.
LINE - Indicates the mode of connection:
Permanent: Leased Line
Flashing: PSTN or V23 half duplex
Off: Command Mode
Equally a sign of bad DSP during power up test.
PSTN
Off: 300 bps
Flash 1 Time = 1200 bps Flash 2 Times = 2400 bps
Flash 3 Times = 4800 bps Flash 4 Times = 9600 bps
Flash 5 Times = 12000 bps Flash 6 Times = 14400 bps
Flash 7 Times = 16800 bps Flash 8 Times = 19200 bps
Flash 9 Times = 7200 bps Flash 12 Times = 21600 bps
Flash 13 Times = 24000 bps Flash 14 Times = 26400 bps
Flash 15 Times = 28800 bps Flash 16 Times = 31600 bps
Lighted permanent = 33600 bps
4.1.3. The Push Button
The MODE push button programs different functions depending on the current mode.
IN COMMAND MODE:
•
Performs automatic dialing of the number stored in memory or holds the line in originate
mode if no number was stored, or starts answering if rings were detected on the line. The
length of the press is signaled by a single flash of the DSR LED. The PSTN number may
have been dialled by the telephone set for example.
•
A two-second push holds the line in answer mode. The length of this push is signaled by
two flashes of the DSR LED.
•
If the button is pressed for more than 10 seconds (three flashes of the DSR LED), the
modem resets.
IN ON-LINE MODE:
•
When the modem issues a beep to report a dial backup connection, then pressing the
button stops the alarm beep.
•
Pressing the button once disconnects the modem and selects idle mode again.