U-90E
Data/Fax
Modem
Getting to know your Modem
1-3
•
Distinctive ring detects data and voice calls (this feature requires communication
software that supports distinctive ring, such as ZFAX).
•
Remote configuration capability.
•
EDR (extended Distinctive Ring).
•
Flash EPROM memory lets you easily upload new firmware, providing you with easy
access to new features.
•
ZyXEL exclusive Kernel Recovery Mode for no hassle recovery from failed flash
uploads - no factory repairs needed.
•
Reduced voice function. Supports DTMF tone generation and detection only.
1.4 Data
Compatibility
The U-90E modem is a high performance universal modem capable of transmission
speed up to 56/33.6 Kbps full-duplex on a 2-wire dial-up line. Universal compatibility
covers a broad range of ITU-T and BELL standards.
Various operation modes that can be achieved are as follows:
Table 1-1 U-90E Data Operation Modes
Standard
Bit Rate [bps] Baud Rate
[baud]
Modulation
Carrier Frequency
[Hz]
V.90 28000-56000
8000
PCM
V.34bis/V.34 33600-2400
multiple
TCM
multiple
V.32bis 14400
2400
128-TCM 1800
V.32bis 12000
2400
64-TCM 1800
V.32bis 7200
2400
16-TCM 1800
V.32 9600
2400
32-TCM 1800
