User's Manual

Corning Optical Communications User Manual
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CMA-601-AEN
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Page 8
1.2 System Description
1.2.1 GX Dual-Band with Corning® Optical
Network Evolution (ONE™) Solution
Figure 1.2 illustrates a scenario including the dual-band GX
MIMO remote supporting the WCS and 2.5 GHz TDD bands and
two quad-band GX remote units each supporting ESMR/CELL,
PCS, 700 LTE, and EAWS deployed with the Corning
®
optical
network evolution (ONE
™
) solution.
The MIMO1 and MIMO2 RF signals, received from the BTS, are
conditioned by the headend unit (HEU), ensuring a constant RF
level. The conditioned MIMO1 and MIMO2 signals are then
transferred via the interface box* (IFB) and routed through the
optical central hub (OCH)
†
optical modules. For the TDD band,
an integrated IF clock module (pilot), installed in the IFB enables
transmitting the converged wideband RF/IF and pilot signals
through the interface box to the OCH. The OCH converts the RF
signal to an optical signal for transport over low-loss fiber
cabling to/from multiple GX remotes, where they are converted
to high-level RF signals. The GX includes an internal combiner
so that both WCS and 2.5 GHz TDD bands services are
transmitted via a single output port (SISO) or two for MIMO.
An external low-loss combiner is used to combine the
dual-band GX with the quad-band GX to support six bands
services on a single output port.
The GX remotes (and OCH) are managed and controlled via the
headend control module (HCM)
‡
installed in the headend
chassis, enabling local and remote management and providing
single-source, centralized common headend controls of all
installed elements.
*Each interface box supports connections to up to two HEUs or integrated
headend units (IHUs) via ERFCv2 cables.
†RF connections between the interface box and the OCH are performed using
QMA-to-QMA cables (accessory kit part number: AK-RIU4-OCH-CABLES).
‡
In deployments with the ONE solution, GX remotes require an SC-450 interfacing
between the OCH and HCM for management capabilities.
Notes:
• Only extended radio interface modules (RIMe) support
GX-E17E85P19L70-40-AC and GX-E17E85P19L70-40-DC. See
ordering information in this document for relevant part
numbers.
• The dual-band GX with WCS and 2.5 GHz TDD support is
supported by SC-450 v7.6 and higher and ONE
v3.3 and higher.