Omni 56K Smart User’s Guide
Specifications & Functions
3-5
Table 3-4 Physical Layer Capacity
STANDARD
BIT RATE [BPS]
BAUD RATE
[BAUD]
MODULATION CARRIER
FREQUENCY [HZ]
V.32 9600 2400 32-TCM
1800
V.32
uncoded
9600 2400 16-QAM
1800
V.32 4800 2400 4-DPSK
1800
V.23
1200/75 1200/75 FSK
V.23 600/75 600/75 FSK
V.22bis 2400
600
16-QAM 1200
Call
2400 Ans
V.22
(BELL 212A)
1200 600 4-DPSK
1200
Call
2400 Ans
V.21 300 300 FSK
BELL
103
300 300 FSK
3.7 Flow
Control
This feature refers to stopping and restarting the flow of data into and out of the modem's transmission and
receiving data buffers. Flow control is necessary so that a device does not receive more data than it can
handle. The Omni 56K Smart provides two kinds of flow control methods.
3.8 Hardware CTS/RTS Flow Control
This is a bi-directional flow control where CTS (Clear to Send) and RTS (Ready to Send) are RS-232 signals
that must be available on your computer. CTS is an RS-232 signal that means the device can send data now.
RTS signifies that the device is now ready to receive data. Both CTS and RTS are hardware methods of flow
control.
3.9 Software XON/XOFF Flow Control
This is a bi-directional flow control. XON and XOFF character defaults are decimals 17 and 19. These can be
changed by modifying the S-Registers S31 and S32.Both the modem and the DTE will treat XOFF as a
Summary of Contents for Omni 56K Smart
Page 1: ...Omni 56K Smart Fax Data Modem User s Guide Version 1 0 August 2002 ...
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Page 66: ...Omni 56K Smart User s Guide 5 32 Command Sets ...
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