Table 3-1 Capacity For Pon System Elements - Alcatel-Lucent 7330 Product Information Manual

3 — ONT and MDU general and interface technical specifications
3.1 Overview
This chapter provides information about ONT and MDU technical specifications.
3.2 System and service capacity specifications
This section provides the ONT system and service capacity specifications. Service
descriptions, such as VoIP and flex services, are provided in the appropriate OLT
Product Information Manual.
P-OLT performance and distance
The P-OLT provides performance and distance capacity of 2.488 Gb/s downstream
and 1.244 Gb/s upstream, within a 18.6 mile (30 km) span with GLT2-x cards and
within 37.3 miles (60 km) span with the GLT4-A and GLT4-D cards. The PON reach
available depends on the optical budget supported by the LT card used, the PON
reach specified based on network deployments, and the loss of optical fiber,
connectors, and splitters, and so on. Extended PON deployment allows you to
configure each PON to provide a 20 km, 34 km, and a 40 km differential window for
ranging and ONT operation.
The optical link budget is defined by both loss and bandwidth characteristics. The
loss characteristic is the difference between the optical transmitter and optical
receiver for each direction, and is typically 28 dB. The bandwidth characteristic is
the maximum link distance parameter of each OLT and ONT transmitter
specification, and is limited by the smaller of the upstream and downstream values.
PON capacity
The number of ONTs on the PON affects the bandwidth available to each subscriber.
Table
per device is listed in the data sheet for the device.
Capacity
PON
Maximum number of IGMP channels
per PON
Maximum number of data UNI ports
per PON (total of all UNI types)
Maximum number of CESUNI UNI
ports per PON
Maximum number of CES PW UNI
ports per PON
Maximum number of POTS ports per
PON
(1 of 2)
3-2
3-1 lists the capacity of various components on the PON. Individual capacity

Table 3-1 Capacity for PON system elements

Maximum Notes
288 Only created on VLAN ports.
288 This is the total of all CES (CESUNUI and CESPW UNI), ENET, VoIP,
and VDSL2 UNIs.
VoIP UNIs are created automatically when the ONT is planned
128
with the VOIPALLOWED parameter set to enabled (YES in TL1).
128
384 —
March 2011
ONT Product Information Guide Edition 01
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