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Ultra-Broadband

Who Makes What: GPON Equipment

The optical network terminal (ONT) and optical line terminal (OLT) are the most visible components of a GPON network.

OLTs
The optical line terminal is the central office-based hardware that sits between the carrier's metro optical network and the homes hooked up to fiber connections. The OLT configuration varies depending on the vendor and the number of homes being served.

OLTs are sold as shelves, which house line cards, and are mounted in racks. A rack is seven feet tall and contains 42 rack units of vertical space. If a carrier deploys a GPON OLT shelf that measures 14 rack units, it can house three such shelves in a rack.

An OLT shelf usually supports between 1,000 and 2,000 homes. Hitachi Telecom (USA) Inc. 's OLT shelf, for example, supports 32 PON interfaces. Since each PON can be split up to 32 homes, the OLT shelf supports up to 1,024 homes.

In urban areas, central offices naturally tend to serve a higher number of homes. Verizon Communications Inc. (NYSE: VZ) typically serves 15,000 to 20,000 customers from each urban central office. In more rural areas, 1,000 to 2,000 homes per central office is more common.

ONTs
An optical network terminal sits at the customer's home and can support a variety of features including streaming video, RF video, and TDM services. Some vendors such as Zhone Technologies Inc. (Nasdaq: ZHNE) have even tried to differentiate on features such as the ONTs' power source. (See Zhone Debuts Line-Powered ONT.)

GPON equipment in general is a fiercely competitive market since there are only a few carriers doing massive rollouts. That has led some vendors such as Calix Inc. (NYSE: CALX) and Occam Networks Inc. (Nasdaq: OCNW) to focus exclusively on Tier 2 and Tier 3 carriers rather than spend resources courting a Verizon or an AT&T. (See Calix Ships 200,000 ONTs and Calix Adds MDU ONTs.)

As far as Tier 1 carriers go, previous PON-equipment winners like Alcatel-Lucent (NYSE: ALU) have locked up sizable shares of the GPON rollouts. Surprising newcomer Ericsson AB (Nasdaq: ERIC), however, managed to land a lead supplier roll at AT&T Inc. (NYSE: T) thanks to its acquisition of Entrisphere. (See Ericsson Buys Entrisphere and AT&T Picks GPON Players.)

Adtran Inc. (Nasdaq: ADTN) is another recent latecomer looking to deploy in the Tier 1 space. (See Adtran Adds GPON.)

Among smaller vendors, Pannaway Networks is throwing its name into the ring through its acquisition of TelStrat International 's access division. (See Pannaway Goes After Calix.)

Thanks to the lack of progress with GPON interoperability standards, carriers typically purchase ONTs and OLTs together as a set. In table 1 below, we’ve listed the ONT vendors and their basic ONT product lines, and indicated the basic sets of features that they offer. In table 2, we've listed the OLT vendors along with the main product line they sell in that category.

Since vendors commonly sell ONTs and OLTs as a single system, some of the companies listed have the same product name for both types of gear.

Table 1: ONTs
Vendor Product Line SFUs MDUs IPTV RF Video POTS Ports Gigabit Ethernet
Adtran
Total Access 300
x
x
x
2
x
Alcatel-Lucent
7342 ONT
x
x
x
x
4
x
Cambridge Industries Group
G- and T-series
x
x
x
x
24
x
Calix
710/710G, 720/720G, 740/740G, and 760/760G
x
x
x
x
8
x
ECI Telecom
B-FOCuS ONT
x
x
x
2
x
Enablence (Wave7)
G-1000i, G-1300i, G-221, and G-888
x
x
x
x
8
x
Ericsson
EDA 1500
x
x
x
x
2
x
Hitachi Telecom
AMN1220
x
x
x
x
6
x
Huawei
EchoLife HG850
x
x
x
2
x
LS Cable
LST Series
x
x
x
x
2 or 4
x
Motorola
1000GT2, 1500GT, and 6000GVT
x
x
x
x
2
x
NEC
ME200 Series ONT
x
x
x
x
2
x
Nokia Siemens
SURPASS hiX 570x*
x
x
x
x
2
x
Occam
2440
x
x
x
x
2
x
Pannaway
RGN
x
x
x
4
x
Tellabs
1600-70X
x
x
x
2
x
TXP
7200, 7300, and 7500
x
x
x
4
x
Zhone
zNID
x
x
x
2
x
ZTE
ZXA10
x
x
x
2
x
* NSN has ceased development of this product line. It is still available but will no longer be improved upon.


Table 2: OLTs
Vendor Product Line
Adtran
Total Access 5000
Alcatel-Lucent
7342 P-OLT
Alphion
AOLT-4000
Calix
F5 GPON OLT, C7 GPON OLT
ECI Telecom
Hi-FOCuS MSAN
Enablence (Wave 7)
Trident 7 OLT
Ericsson
EDA 1500
Huawei
SmartAX MA5600T
Hitachi Telecom
AMN1220
LS Cable
LST 9616 IMBA Series
Motorola
AXS2200
NEC
AM3100 Series MSAN
Nokia Siemens
SURPASS hiX 5750*
Occam
6322
Pannaway
MAGNM-20
Tellabs
1150 MSAP
Zhone
MALC OLT
ZTE
ZXA10 C220
*NSN has ceased development of this product line. It is still available but will no longer be improved upon.




Page 3: Triplexers

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Radoslaw 12/5/2012 | 4:52:02 PM
re: Who Makes What: GPON Equipment

What about DASAN Networks (http://www.dasannetworksus.com... thise is independend OLT manufacturer which in the past was part of Nokia-Siemens.


 

Pete Baldwin 12/5/2012 | 3:34:18 PM
re: Who Makes What: GPON Equipment We've added Wave7 (enablence), Conexant, and TXP to the tables. Cambridge Industries Group will be added next.

We'll be adding Huawei too, once we get a bit of input from them. And we're trying to confirm that eGtran belongs in the triplexer list.

Thanks to those who've emailed their feedback to [email protected] ... and keep 'em coming. We must have missed a few others.
Pete Baldwin 12/5/2012 | 3:34:03 PM
re: Who Makes What: GPON Equipment We've added entries for AOI, Cambridge Industries Group, eGtran, Huawei, and NEC.

Calix's entries have been expanded -- thanks to the many folks who pointed out the missing C7 OLT.

LS Cable, in Korea, is going to forward the data to be included in ONTs and OLTs.

Any more? Let us know: [email protected], or just post 'em on this message board.
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