RML100 & 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 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.
The card cage outline dimensions are shown in figure 9. 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.
A transparent cover is available for the front of the card cage which allows
viewing the front panel status while protecting the switch settings.
Cable clamps for organizing and strain relieving the large signal cable
bundles are available for the back of the card cage.
Dataforth does not authorize or warrant its products for use in life support/critical applications.
RML100 Card Cage Rear View
RML101 Card Cage Rear View
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
Figure 9. RML100 Mechanical Drawing
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)

57