56k-xv90-final.jpg (9479 bytes) CMV1456VQH-XV.90
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General Description
Internal x2 TI chip-set based voice/fax/data speakerphone modem. Built-in flashrom enables for software firmware upgrade to the eventual ITU-T 56K standard. It supports up to 56K (FCC allows 53.3K only) downstream and 33.6K upstream data transfer. It has built-in microphone and speakerphone jacks. COM port is set via PnP or onboard jumpers.
ITU-T
ITU-T V.90, V.34Annex12, V.34, V.32bis, V.32, V.17, V.29, V.27ter, V.22bis, V.23, V.22, V.21
Bell
Bell 212A, 103
Error Correction
MNP Class 2-4 & ITU-T V.42
Data Compression
MNP 5 & ITU-T V.42bis
Data Speed Download (bps)
53300, 52000, 50000, 48000, 46000, 44000, 42000, 40000, 38000, 36000, 34000, 33600, 32000, 31200, 28800, 26400, 24000, 21600, 19200, 16800, 14400, 12000, 9600, 7200.....
Data Speed Upload (bps)
33600, 32000, 31200, 28800, 26400, 24000, 21600, 19200, 16800, 14400, 12000, 9600, 7200, 4800, 2400, 1200, 300
COM port & IRQ
COM 1, 2, 3, 4 & IRQ 2, 3, 4, 5, 7 (See Jumper Setting Table Below) & PnP
Fax Class
Group 3 Fax Class 1 & Class 2.0
Dialing Type
Tone or Pulse
Bundled Software
Cheyenne Bitware 3.30.08K

COM Port Jumper Setting

COM port

I/O Address

Jumper 2 A

Jumper 2 B

Jumper 2 C

COM 1

03F8 - 03FF

Short

Short

Short

COM 2

02F8 - 02FF

Open

Short

Short

COM 3

03E8 - 03EF

Short

Open

Short

COM 4

02E8 - 02EF

Open

Open

Short

PnP

N/A

Open

Open

Open

IRQ Jumper Setting

IRQ Assignment

Jumper 3

IRQ 2

2

IRQ 3

3

IRQ 4

4

IRQ 5

5

IRQ 7

7