Trust 56K PC-Card Modem
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Appendix A: Technical specifications
Modulation
standards
V.34, V.32bis, V.32, V.29, V.27ter, V.23,
V.22bis, V.22, V.21 ch2, V.17,
Bell212/103
56.000 bps
norm
V.90 and K56Flex
Compression
V.42bis, MNP Class 5
Error correction
V.42, MNP Classes 2-4
Host interface
PCMCIA, Version 2.1 and higher, type 2
slot
FAX group
Group III
FAX command
Class 1
Controller
Hardware
Data pump
Hardware
Temperature
Working: 10
°
C to 50
°
C
Storage: -10
°
C to 80
°
C
Appendix B: Conditions for a 56K connection
Under certain conditions, your 56K PC-Card Modem can receive data at a maximum speed of 56,000 bits per
second. If a connection is not possible at a speed of 56,000 bps, the modem will automatically switch to a
lower speed, usually between 49,000 and 53,000 bps.
A speed higher than 33,600 bps is only possible
for receiving data
under the following conditions:
•
You are connected to the Internet.
•
Your ISP has a V.90 compatible connection station at the number you dial up to.
•
You are connected to your ISP via a modern (digital) telephone exchange. If you are unsure, ask
your telephone company.
•
You use a direct analogue outside line.
Under all other conditions, and when
sending data to the Internet
, the maximum speed is 33,600 bps.
Note:
The speed depends on the quality of the telephone line. The Trust 56K PC-Card Modem will reduce
the speed if there is a bad connection.
Appendix C: AT Command list
Command
Function
A
Answer incoming call
A/
Repeat last command
Do not precede A/ with AT or follow with ENTER
B0
ITU-T V.22/V.21 modes at 1200/300 bps
B1
Bell 212A/103 modes at 1200/300 bps
B2
V.23 mode at 1200 bps while %B1200 is in effect (TX75/RX1200 bps in
originate mode, TX1200/RX75 bps in answer mode)
