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# ZYXEL COMMUNICATIONS CORPORATION
U-1496B/U-1496B+
Modem Type Data
(synchronous/asynchronous)/Fax/Voice
Maximum Data Rate 19.2Kbps
Maximum Fax Rate 14.4Kbps
Data Bus 8-bit ISA
Fax Class Class I & II
Data Modulation Bell 103A/212A
Protocol
ITU-T V.21, V.22, V.22bis, V.23,
V.26bis, V.27bis, V.29, V.32, V.32bis,
V.33
ZyXEL 16.8Kbps, 19.2Kbps, ZyCELL
4800bps-19.2Kbps cellular
Fax Modulation ITU-T V.17, V.21CH2, V.27ter, V.29
Protocol
Error MNP2-5, V.42, V.42bis
Correction/Compression
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| Line in | CN1 | Line out | CN2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BASE I/O ADDRESS SELECTION |
|------------------------------------------------------------|
| Address | JP1/A | JP1/B | JP1/C | JP1/D |
|------------+-----------+-----------+-----------+-----------|
| COM1: | Closed | Open | Closed | Open |
|------------+-----------+-----------+-----------+-----------|
| COM2: | Open | Closed | Closed | Open |
|------------+-----------+-----------+-----------+-----------|
| COM3: | Closed | Open | Open | Closed |
|------------+-----------+-----------+-----------+-----------|
| COM4: | Open | Closed | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | JP1/E | JP1/F | JP1/G | JP1/H |
|---------+------------+------------+------------+-----------|
| 3 | Closed | Open | Open | Open |
|---------+------------+------------+------------+-----------|
| 4 | Open | Closed | Open | Open |
|---------+------------+------------+------------+-----------|
| 5 | Open | Open | Closed | Open |
|---------+------------+------------+------------+-----------|
| 6 | Open | Open | Open | Closed |
+------------------------------------------------------------+
Proprietary Command Set
See document V1036 for a full command summary.