GDI SM560SA 56K Dialup Modem
GDI SM560SA 56K
Dialup Modem
SM560
57600 bps, Internal 170 or
Rack Mount
1-301-924-7400 ext. 17
Features
GDI Smart Modem SM560SA
* V.90/K56flex Autospeed
* Error Correction / Data Compression
* Call Monitor Speaker
* Standard “AT” Command Set
* Integral Power Supply
* Dual RS232/RS485 Interface
* Wide Operating Temperature Range –37 to +74oC
Description
The GDI Smart Modem SM560SA 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 SM560SA 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 SM560SA offers 26 data rates from 300 to 56,000 bps. The GDI
Smart Modem SM560SA 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 SM336A dial-up modem. The internal fused power supply eliminates the
common “brick” external power supply.
General Specifications
General
Modulation Quadrature Amplitude Modulation
FSK and DPSK
Serial Interface 115.2 kbps max, V.24/V.28, V.34 RS232/RS485 compatible
Data Rates 56, 54-36, 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, 1.2 and 0.3 Kbps
Automatic selection for highest error free rate
230,400 maximum throughput
Compatibility As a Data Modem
Bell 103, Bell 212A, V.22A/B, V.22bis, V.32, V.32bis, V.34, and V.90/K56Flex
As a Fax Modem
V.17, v.21 channel 2, v.27ter, v.29, 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 (LAL)
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
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
Indicators
Power, TXD, RXD, DCD, DTR, RI, DSR/OFF HOOK
Switches
DTR On/Off
RS485 Data Standard or Inverted
RS485 Control Lines Standard or Inverted
Power Requirements
Voltage 90 to 130 VAC (Standard)
180 to 260 VAC (optional)
Frequency 60 Hz +/1 3 Hz
Power 6 watts maximum
Mechanical
Size 1.5" H x 5.5" W x 8.5" D
Weight 2 lbs
Environmental
Temperature Range -37 to 74oC
Humidity 5 to 95% non-condensing