2
Rev 1.0 • 14 Dec 09
1. Introduction
Frame Front
Power Supply
Power for the EC9535 is supplied through the Miranda PS0007 power supply module. The PS0007
power supply module accepts a wide range of AC input voltages and pr48 VDC outputs.
The power supply automatically senses the AC input voltage range (90–130 and 180–250 VAC)
and adjusts to maintain a relatively constant DC output; no voltage selection is required.
Frame Front
The front of the EC9535 GSC Node Bus Converter features a single door. When facing the front of
the frame the right-hand side features an open grill through which a fan draws cooling air. A handle
is provided on the left-hand side. The door is hinged on the right-hand side and swings open from
left to right. By opening the door, you can access the control cards.
Figure 1-1 shows the front of the EC9535 with the door closed. Figure 1-1 shows the EC9535 with
the door removed. The card guides that house the control cards are visible.
Figure 1-1. Front of EC9535 with Door Closed
Figure 1-2. Front of EC9535 with Door Removed
Control Cards
The EC9535 has two control cards (EM0374), one primary and one secondary. The secondary card
is optional and used as a redundant, or stand-by, controller. Each control card is equipped with a
special mezzanine (SM0220) that facilitates communication between the control cards and the
SMS7000 system controller. Each card receives commands from a router control system, and in
turn, sends commands to the connected router’s control cards. Only the active control card sends
commands. The active control card updates the stand-by control card.
Both the primary control card and the secondary control card receive commands from the router
control system, but only the active control card responds. Because both cards receive router control
system commands, if the active control card fails, the stand-by control card automatically takes
over processing without interruption. In addition, the primary control card and secondary control
card communicate with each other. Should either control card fail, the newly active control card
communicates the failure to the router control system.
EC9535
GSC Node Bus Converter
Summary of Contents for EC9535
Page 16: ...8 Rev 1 0 14 Dec 09 1 Introduction Rear Connections ...
Page 26: ...18 Rev 1 0 14 Dec 09 2 Installation Connecting to Power ...
Page 28: ...20 Rev 1 0 14 Dec 09 3 Configuration ...
Page 36: ...28 Rev 1 0 14 Dec 09 6 Glossary ...
Page 38: ...30 Rev 1 0 14 Dec 09 7 Part Numbers ...
Page 42: ...34 Rev 1 0 14 Dec 09 Index ...
