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Industrial Data Communication Products
Data Comm.
RML100 Rack-Mounted Industrial Modem System Description
The RML100 system consists of three different limited distance modem communications cards, two power supply cards, and two backplane/card cages, all configured to the spacesaving VME 3U (5.25") form factor. Each RML100 card contains two modem channels, optically isolated and surge protected to 300V. They include LED diagnostic indicators and null modem and loopback switches.
The RML100 Rack-Mounted Industrial Modem System allows efficient organization of a large number of communication channels at a single site with a single power supply. Use of system channel cards extends RS-232 communications distances to miles without expensive low capacitance cabling. RML100 also protects equipment from lightning and power surges and breaks ground loops. It is an ideal system for use in industrial and institutional local area networks.
Features
• Up to 28 Data Channels Powered From a Single Supply • Optical Isolation: 500V Surge, 300V Continuous • Null Modem and Loopback Switches • Diagnostic LEDs • Integrates with Discrete LDMs for Distributed Systems • Screw Terminal or Modular Phone Jack Connections • Extended Distances, E.G. 12 Miles/1200bps (RML070) • CE Compliant
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Figure 1: RML100, 101 Card Cage with Single Power Supply
Figure 2: RML100-R, 101-R Card Cage with Redundant Power Supplies
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Specifications RML035
Communications Cards
RML070
RML485
Bit Rate Range Bit Rate/Distance mi. (km)
0 – 19.2k 19.2k/0.5 (0.8), 1.2k/7 (11.3)
0 – 57.6k 19.2k/1 (0.6), 1.2k/12 (19.3)
0 – 57.6k 19.2k/3 (4.8), 2.4k/8 (12.9)
Isolation
Optical/500V
Optical/500V, Transformer/300V
Optical/500V, Transformer/300V
Modes
4-wire full duplex, 2-wire simplex, loopback
4-wire full duplex, 2-wire simplex, loopback
4-wire full duplex, 2-wire half duplex, simplex, multidrop, loopback
Channel lines(1) Control lines(1)
TD, RD
TD, RD DTR, RLSD
TD, RD, RTS, CTS RTS, CTS, DTR, DSR, RLSD
Dimensions
9” x 4” x 1” (228.6mm x 101.6mm x 25.4mm)
9” x 4” x 1” (228.6mm x 101.6mm x 25.4mm)
9” x 4” x 1” (228.6mm x 101.6mm x 25.4mm)
RML104 and RML105
Power Supply Cards Input Voltage Input Frequency
100 – 250VAC 47 – 63Hz
Output Voltage/Current Output1 Output 2
+12VDC/4.0ADC –12VDC/3.5ADC
Load/Line regulation (max) Output 1 Output 2
1.0/0.1% 5.0/0.5%
Environmental: Operating Temperature Range Storage Temperature Range Relative Humidity
0°C to +50°C –40°C to +85°C 0-95% non-condensing
Dimensions
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Ordering Information Model
Description
RML035 RML070 RML485 RML104 RML105 RML100
2 LDM35 Channels 2 LDM70 Channels 2 LDM485 Channels System Power Supply Redundant Power Supply Card Cage/Backplane with Screw Terminals/ RML104 System Power Supply RML100 + RML105 Redundant Power Supply Card Cage/Backplane with Modular Phone Jacks/ RML104 System Power Supply RML101 + RML105 Redundant Power Supply
RML100-R RML101 RML101-R
9” x 4.4” x 2.8” (228.6mm x 111.8mm x 71.1mm)
NOTES: (1) TD = Transmit Data, RD = Receive Data, RTS = Request To Send, CTS = Clear To Send, DTR = Data Terminal Ready, DSR = Data Set Ready, RLSD = Received Line Signal Detect.
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Industrial Data Communication Products
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RML100 and RML101 Backplanes/Cardcages Description The backplane acts as a concentration point for routing signals for the 14 serial data interface converter channel cards, 2 channels per card. It routes this volume of signals while maintaining 300V isolation between host side and field side circuits and 300V isolation between channels. The RML100 backplane/card cage contains 9 screw terminals per channel for field connections and one 9-position female D-style connector per channel for RS-232 connections. The RML100 backplane/card cage weighs 7.5 lbs (3.4 kg), not including power supply card(s).
The card cage outline dimensions are shown in figure 3. The 5.25" height dimension is alternately known as 3U. The 1.125" dimension behind the card cage allows room for the right angle power cord connector. This is a minimum depth dimension and depending on the thickness of communications cabling, more space may be required.
The RML101 backplane/card cage contains one 4 position modular phone jack per channel for field connections and one 9-position female D-style connector per channel for RS-232 connections. The RML101 backplane/card cage weighs 7.2 lbs (3.27 kg), not including power supply card(s). The card cage mechanically conforms to standard racks as specified in Electronic Industries Association EIA standard RS-310. It also conforms to the VMEbus specification, mechanical specifications. The VMEbus specification conforms to: ANSI/IEEE STD 1014-1987 and IEC821 and 297.
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Figure 1: RML100 Card Cage Read View
Figure 2: RML101 Card Cage Rear View
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Industrial Data Communication Products
19 (482.6) 18.344 (465.9)
5.25 (133.3)
2.25 (57.1)
1.125 (28.6) 14.375 (365.1)
0.278±0.010 (7.1±0.4)
0.406±0.015 (10.3±0.4) 0.531±0.015 (13.5±0.4) Dimensions: Inches (Millimeters)
Figure 3: RML100 Dimensions
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