
7750 SR-a4 and 7750 SR-a8 Overview
7750 SR-a4 and SR-a8 Installation Guide
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Slot three supports one IOM-a. IOM-a cards occupy a full chassis slot. The IOM-a performs
data forwarding from the ingress port to the egress port. There is no switch fabric for the
7750 SR-a4.
Slot four, the bottom slot, supports up to two CPM-a cards, designated as CPM A and CPM
B. In a redundant system, the CPM-a cards are installed in slots CPM A and CPM B. CPM-
a cards occupy a half of a chassis slot. In a simplex system, the CPM-a can be installed in slot
CPM A or CPM B; an impedance panel must be installed in the empty CPM-a slot.
Below slot four is a non-removable chassis filler plate.
Below the chassis filler plate, Power Supply Units are located at the bottom of the
7750 SR-a4 chassis, and are numbered PSU 1 to PSU 4, from left to right. Each PSU occupies
one-quarter of a chassis slot. Two types of PSUs are available: one for universal AC power
feeds and one for –48 VDC power feeds.
Chassis bundles for the 7750 SR-a4 include one PSU. PSUs are orderable items that are
available for AC and DC power feeds. Alcatel-Lucent recommends that the PSUs be installed
in an N+1 configuration. A PSU impedance panel must be installed in any empty PSU slot.
The right side of the chassis has one vertical slot for an air filter. The left side of the chassis
has one vertical slot for the fan tray, which pulls air through the chassis from right to left.
7750 SR-a8 Chassis Features
The 7750 SR-a8 is a 200 Gb/s full-duplex system that is designed to be installed in an EIA
19-inch (482.6 mm) rack, where the chassis occupies 7 RU.
shows the front view of
a populated 7750 SR-a8 chassis.
describes the features of the 7750 SR-a8 chassis.
The chassis can also be installed in an ETSI 600 mm wide by 300 mm deep rack. Adapter
brackets are required to accommodate the 535-mm mounting width aperture of the ETSI rack.
The 7750 SR-a8 occupies 13 ETSI RU.
The CPM-a, IOM-a, and MDA-a cards, and the PSUs and fan tray must be installed after the
chassis is mounted in the rack and grounded. All physical connections are made from the
front of the chassis, including the chassis ground point. There are no connectors on the back
of the chassis.
Содержание 7750 SR-a4
Страница 8: ...Table of Contents 8 7750 SR a4 and SR a8 Installation Guide...
Страница 12: ...List of Tables 12 7750 SR a4 and SR a8 Installation Guide...
Страница 16: ...List of Figures 16 7750 SR a4 and SR a8 Installation Guide...
Страница 22: ...Technical Support 22 7750 SR a4 and SR a8 Installation Guide...
Страница 70: ...Safety Standards Compliance Agency Certifications 70 7750 SR a4 and SR a8 Installation Guide...
Страница 122: ...Managing Cable Connections to MDA a and MDA aXP Cards 122 7750 SR a4 and SR a8 Installation Guide...
Страница 136: ...Troubleshooting Initial Startup 136 7750 SR a4 and SR a8 Installation Guide...
Страница 170: ...44 port 1GigE CSFP SFP MDA a Overview 170 7750 SR a4 and SR a8 Installation Guide...
Страница 210: ...Removing and Replacing an Impedance Panel 210 7750 SR a4 and SR a8 Installation Guide...
Страница 230: ...Installation and Replacement of Pluggable Transceivers 230 7750 SR a4 and SR a8 Installation Guide...
Страница 232: ...2015 Alcatel Lucent All rights reserved 3HE 10231 AAAA TQZZA Edition 01...