Telenetics MOT202T Network Card User Manual


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Modems
Modems
Introducing the latest addition to the Telenetics
®
family of industrial grade, temperature hardened
modems, the MOT202T is a pin-for-pin, form, fit
and function replacement for the Motorola/UDS
Model RM16M202T.
A must for industrial applications, the MOT202T
(Standalone) features built-in diagnostic, anti-
streaming, multi-power inputs (115 to 240AC, 12 to
125VDC) and -40
º
C to +80
º
C operating range capabilities.
The modem operates over leased or dedicated, loaded
or unloaded lines equal to or better than the ITU
(formerly CCITT) M.1020/1025 or the BELL 3002 leased
line services. It operates over point-to-point or
multi-point polled systems and operates in full or
half-duplex over 4-wire or 2-wire circuits.
MOT202T
“Born-Again”
UDS/Motorola 202T
The modem employs circuitry to prevent data and carrier detect errors over noisy lines. In multi-drop systems
it is very common to have noise spikes and other harmful high frequency components caused by carrier turn-offs
from other modems on the same line. The modem uses a combination of soft-carrier generation and soft-carrier
detection in conjunction with a signal to noise ratio (SNR) detector to eliminate errors caused by line noise.
The MOT202T’s anti-streaming capability prevents a modem from remaining in the transmit mode when the modem is
not actively transmitting date. In addition, the MOT202T allows users to verify transmitted and received data
via the diagnostic feature.
The MOT202T interchangeable design between the Universal Data Shelf multiple modem enclosure (RM16M series)
and the standalone modem enclosure, enables the modem to be directly inserted in the Universal Data Shelf when
the optional front panel is attached. Thus, data-communications facility can easily upgrade from front
multiple standalone enclosures to a centralized rack without the expense and trouble of purchasing new modems.
▲ 2-wire half duplex or 4-wire full duplex
private line operation
▲ 0 to 1200 bps data rate over unconditional
lines and 1800 over high quality lines
▲ Anti-streaming
▲ Phase coherent, frequency shift keyed
(FSK) modulation
▲ LED indicators
▲ Front panel rotary switch function selector
▲ Integral test features
▲ 12, 24, 48, 125VDC Power (Rack)
▲ 115VAC, 60Hz - 220/240VAC 50 Hz
power (Standalone)
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