Specifications

Specifications and Ordering Information
Part Number 162096-01
Rev. F (03/07)
Page 2 of 12
System Components
Rack
The full-size 3500 Rack is
available in 19” EIA rail-
mount, panel-cutout-mount,
and bulkhead-mount
versions. The rack provides
slots for two Power Supplies
and a Rack Interface Module
in the left-most rack positions that are reserved
exclusively for these modules. The remaining 14
slots in the rack can accommodate any
combination of monitor, display, relay, Keyphasor
module, and communications gateway modules.
All modules plug into the rack’s backplane and
consist of a main module and an associated I/O
module. The I/O module installs at the rear of the
rack for panel-mount systems, and above the main
module for bulkhead-mount systems.
The rack depth is 349 mm
(13.75 inches) and NEMA 4
and 4X weatherproof
housings are available when
required for environmental
protection or when purge air
is used.
A mini-rack (12” wide instead
of 19”) is also available and
features 7 available monitor
slots instead of 14. Like its larger counterpart, the
left-most slots are reserved for the Power Supply or
Supplies and Rack Interface Module. The mini-rack
may be mounted in a panel cutout or, using an
optional adapter plate, on 19” EIA mounting rails.
Bulkhead mounting is not available.
Note: The use of internal barriers adds 74 mm (3 inches) to the
rack depth. The bulkhead-mount version of the rack is 267 mm
(10.5 inches) deep. Actual dimensions of all rack types can be
found in our document number 129766.
Power Supply
The 3500/15 Power Supply can be ordered for ac or
dc input power, providing compatibility with voltage
sources worldwide. Line noise filters are standard.
The 3500 Rack can operate from a single
supply, or dual Power Supplies can provide
redundancy for situations which cannot
tolerate power interruption. Dual supplies
reside in the upper and lower positions of
the left-most rack slot. Redundant Power
Supplies can use with separate voltage
sources. For example, the primary
(bottom) supply can be operate with 120 Vac power
while the backup (upper) supply can be powered
from an uninterruptible 24 Vdc source.
Each Power Supply can individually provide power to
the entire rack and its modules. When redundant
supplies are used, one supply acts as primary power
for the rack while the other acts as a backup, ready
to instantly and automatically operate as the
primary rack supply without interrupting rack
functions., should the primary supply fail.
The 3500/15 Power Supply module has self-
monitoring functions that allow it to determine if all
its output voltages are within specifications. The
module annunciates this via a green “Supply OK” LED
on the Power Supply’s front panel.
Rack Interface Module/Transient Data
Interface
The Transient Data Interface (TDI) or the Rack
Interface Module (RIM) are the 3500 Rack’s primary
interfaces to the configuration, display, and
condition monitoring software. Each rack requireas
one TDI or RIM, which resides in the rack slot
immediately adjacent to the Power Supply slot. The
TDI and RIM support a proprietary protocol used by
both the 3500 Configuration Software to configure
the rack and the 3500 Operator Display Software to
retrieve rack data and statuses. TDI provides a direct
interface with GE’s Bently Nevada System 1®
machinery management software without the need
for an external communications processor. The RIM
requires an external communications processor,
such as TDXnet™, TDIX, or DDIX to interface to Data
Manager® condition monitoring software.
The System OK relay
1
is located within the TDI/RIM’s
I/O module. It is driven by NOT OK conditions within
the TDI/RIM itself and within other modules in the
rack.