Specifications

XARTU/5™ Manual Copyright© 2013 Eagle Research Corporation
®
REV 11.1.11 Page | 24
OPTIONAL MODEMS (2400 AND 33,600 BPS)
The optional modems offer automatic answering and dialing. They can communicate at
speeds up to 33,600 baud. The EEPROM editor in the XARTU/5 can be used to
configure the baud rate for your modem. There are five status LEDs: RI (ring
indicator), DTR (data terminal ready), DCD (data carrier detect), RXD (receive data) and
TXD (transmit data). Jumper JP6 on the IOT60 expansion/termination board controls
how the modem is powered. It supplies 5VDC continuously to the modem when in the
left position, and requires Port D7 to be turned on to supply 5VDC to the modem in the
right position. All modems are interchangeable and field upgradeable. The table below
shows the wiring for the modem port. You may also use the RJ-11 jack for direct tip
and ring connection.
Modem Description
XARTU/5 Terminal Location
TIP
RING
GND
GND
89
90
91
92
The table below lists the specifications for two of the typical modems used in the
XARTU/5.
2400 Baud
33,600 Baud
FCC Part 68 approved and DOC
approvable
FCC Part 68 approved and DOC approvable
Supports standard CCITT V.22bis
(2400bps), Bell 212A (1200bps), and
Bell 103 (300bps)
Supports standard CCITT V.34bis
(33,600bps), V.34 (28,800bps), V.FC,
V.32bis (14,400bps), V.32, V.22bis,
V.22A/B, V.23, V.21, Bell 212A (1200bps)
and 103 (300bps)
AT Command structure with extensions
AT Command structure with extensions
1000 VAC isolation barrier
1000 VAC isolation
Non-volatile RAM
Non-volatile RAM
Error correcting – V.42 LAMP, MNP 2-4 and
MNP 10
Data compression – V4.2bis and MNP 5
MNP 10 Data throughput enhancement for
cellular operation
DTE interface with speeds up to 11.5kbps
Automated baud rate adaptability utilizing
speed sensing, flow control, and data
buffers
Data modem throughput up to 115.2kbps
Supports Send & Receive Fax Class 1,