Belden Grass Valley EC9535, Справочное руководство, Страница: 9 / 44

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Introduction
The EC9535 GSC Node Bus Converter is a communications protocol converter that allows
Miranda’s NV8288, NV8288-Plus and NV8500 family routers to communicate with an SMS7000
router control system.
A router must have (1) a GSC Node Bus connector and (2) a control card that follows the
SMS7000 protocol. The NV8288, NV8288-Plus and the NV8500 family routers do not have these
items.
The EC9535 has the GSC Node Bus connector and the control cards that follow the SMS7000
protocol. The SMS7000 connects to the EC9535, which in turn, connects to the router:
The EC9535 interprets commands from the SM7000, sending equivalent commands to the
router. It also interprets status mesages from the router, returning their equivalent to the
SMS7000.
Product Overview
The EC9535 GSC Node Bus Converter is used as an interface between a SMS7000 system
controller and a specific Grass Valley router. Unlike a router, the EC9535 does not actively
manage signals. Instead the EC9535 provides a GSC Node Bus to serial interface that enables a
SMS7000 system controller to communicate wit h Miranda routers that feature only serial
system controller connections. In addition, the EC9535 provides high reliability through redun-
dant power supplies and redundant control cards, as well as deterministic communications
processing.
Mounting
The EC9535 GSC Node Bus Converter mounts in a rack with minimum dimensions of 2RU high
(3.47 inches, 88.1 mm), and 16.0 inches (406 mm) deep. When placing the rack in your facility, be
sure to leave enough space for air flow through the front and rear of the EC9535 and within easy
access of an AC power source. For mounting instructions, see
Rack Mount on page 10.
Fuses
The EC9535 GSC Node Bus Converter has no user-serviceable fuses.
SMS7000 EC9535 Router
command
status
command
status