Westermo TR-36B - Manual (Page 7)

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Description
The TR-36B is a rack mount analogue V.34 PSTN and 2- or 4-wire leased line modem.
It supports data rates of up to 115.2 kbit/s on the terminal side and modem modulation
speeds of up to 33.6 kbit/s on the line side. The modem is designed to harsh industrial
standards for applications where a number of modems are required in the same loca-
tion. The unit has passed extensive approvals testing by both Westermo and external test
houses, showing the modem can operate in environments with a high level of electromag-
netic interference.
The TR-36B features a number of security functions such as password protection, dial-
back security and caller ID answering making the modem ideal for critical industrial appli-
cations. The TR-36B can also be remotely configured making it ideal for use in unmanned
installations.
The modem is designed to be prepared for unexpected faults. The modem is equipped
with transient protection on the line side and a watchdog function that monitors and
automatically resets the modem in the event of a fault. In case of a leased line failure, a
PSTN dial backup facility can be configured for additional reliability.
The TR-36 is configurable via its serial interface using standard terminal emulation soft-
ware using Hayes AT commands or the Westermo TD-Tool modem configuration utility.
Additionally many functions of the TR-36B can be configured via the onboard
DIP-switches.
The modem is designed for use in the Westermo RV-07B 19" rack, which can hold up to
16 cards as well as two PS-20 power supplies. The modems slide into the chassis from
the front with all line connections terminating onto the backplane. The rack can hold up
to 16 TR-36B modems and can also be externally powered by a 24 V supply.
… Data rate up to 33.6 kbit/s with
Fast Connect
… Terminal rate up to 115.2 kbit/s
… 2- and 4-wire leased line
… V.23 HDX with multidrop
… DTR and incoming data dialling
… DIP-switch configuration
… Watchdog
… Secure call back and access
… Industrial environment transient
protection on all interfaces
… Up to 11 bits
… Tri-Galvanic isolation
(interface/line/supply)
… Caller ID presentation
and answering
… Remote configuration
… RS-422 / RS-485 interface
… Dial backup for PSTN
and Leased Line