GDI SM336 SM336SA 33.6 Dialup Modem
GDI SM336 33.6
Dialup Modem
SM336 (170 Plug-in) SM336SA (standalone)
GDI Smart Modem SM336
1-301-924-7400 ext. 17
Features
* Standard “AT” Command Set
* Dual RS232/RS485 Interface
* Call Monitor Speaker
* Error Correction / Data Compression
* Integral Power Supply
* Rugged Metal Enclosure
* Wide Operating Temperature Range –37 to +74oC
* Standalone or 170 Plug-in Card
* Standalone or 170 Plug-in Card
Description
The GDI Smart Modem SM336 is an AT command
set compatible dial-up modem. This modem has been designed specifically for the
demands of the traffic industry. The GDI Smart Modem SM336 can be used to
communicate with traffic controllers, variable message signs, dial-up to the web
or most any other dial-up application that requires communications over the
public switched network. The GDI Smart Modem SM336 offers 26 data rates from 300
to 33,600 bps. The GDI Smart Modem SM336 is “AT” command set compatible with
auto-dial, auto-answer, and auto-speed detect.
The GDI Smart Modem is compatible with the GDI Smart Modem SM336 dial-up modem.
The internal fused power supply eliminates the common “brick” external power
supply. The unit is also available in a 170 Plug-in form factor.
General Specifications
Modulation Quadrature Amplitude Modulation FSK and DPSK Serial Interface 115.2 kbps max, V.24/V.28, V.34
RS232/RS485 compatible Data Rates 33.6, 31.2, 28.8, 26.4, 24, 21.6, 19.2, 16.8, 14.4,
12, 9.6, 7.2, 4.8, 2.4, .3 Kbps Automatic selection for highest free rate Compatibility As a Data Modem Bell 103, Bell 212A, V.22A/B, V.22bis, V.32, V.32bis, and V.34 As a Fax Modem V.17, v.21 channel 2, v.27ter, v. and V.33 Data Compression V.42bis, MNP5 Error Correction V.42 LAPM, MNP2-4, MNP10 Loop Tests V.54 Loop 2 (RDL) and Loop 3 Modes Asynchronous full or half duplex Automatic/manual call originate and answer PC Compatible Serial Plug and Play Data & Line Interfaces Data RS232C and RS485 via DB-9S Phone handset RJ11 Phone line RJ11 Telephone Line Interfaces FCC compliant Part 68 and Part 15 Line Interface RJ11, 600 ohms, Public Switched Network Ring Equivalent 1 Bel Return Loss Better than 14dB from 200 to 4000 Hz Dialing Pulse and Tone Indicators Power, TXD, RXD, DCD, DTR, RI, DSR/OFF HOOK Receiver Performance Signal to Noise Ratio -26 dB Dynamic Range -12 dBm to –42 dBm Ring Detect Sensitivity 38 VRMS Transmit and Receive Frequencies Data Carrier 1800 +/- 0.5 Hz Calling Tone 1300 +/- 10 Hz Answer Tone 2100 +/- 15 Hz Receive Frequency +/- 14 Hz Transmit Level Fixed at –11 +/- 2 dBm Switches DTR On/Off RS485 Data Standard or Inverted RS485 Control Lines Standard or Inverted Power Requirements SM336SA Voltage 90 to 130 VAC (Standard) 180 to 260 VAC (optional) Frequency 60 Hz +/1 3 Hz Power 6 watts maximum SM336 Voltage +12 & -12 VDC + 5% Power 200 ma Mechanical SM336SA Size 1.5" H x 5.5" W x 8.5" D Weight 2 lbs Environmental Temperature Range -37 to 74
Humidity 5 to 95% non-condensing
Models:
SM336 (170 Plug-in)
SM336SA (standalone)