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S121A/S121M Fusion Splicers for FTTH Applications

1.

OUTLINEIn the rapidly expanding field of FTTH services and LANs,
simple operation and low cost are required. Accordingly,
we have developed and marketed ultra-miniature opticalfiber fusion splicers which combine the same low cost asa mechanical splicer with high-quality connections.

2.

FEATURES

2.1 Appearance
In terminal connection which covers a wide range ofinstallation environments, conventional box-type splicers
have not been regarded as the most suitable method forFTTH services, due to the large size of the equipment
and difficulty of operation. The adoption of an original
T-shaped body enables connections using a minimumof excess fiber length when the splicer’s head is inserted
into the enclosure, and at the same time allows the user
to hold the fusion splicer in one hand when conducting
operations in locations with insufficient working space. A
2.5-inch LCD monitor is built into the main body, so thatthe user can observe the splicing condition.

unit itself weighs 980 g, or a total of 1,150 g with theremovable battery included. Although the S121A does nothave loss estimation functions or connection inspection
using high-resolution image processing, it does offer all
the functions required to increase reliability and ease ofconnection operations. The drive mechanism has been
simplified and the parts count reduced, and parts with thememory function and the operation function have beenadopted. The footprint on the substrate was reduced
about 1/3 over the past, so that the size of the S121A as
a whole could be miniaturized. The compact battery ofexclusive use is also a new design.
2.3 Superb Portability
Because of its compact size, light weight and use of abattery for the power supply, the S121A can be carried tovarious connection locations. The S121A also comes with2.2 Compact, Lightweight Body
The S121A fusion splicer is only one-third the size andweight of Furukawa Electric’s previous model. The

Photo 2

Photo 1

Appearance of S121A.

Photo 3

Small body (S121A and S199).

High portability (suspended by strap).

Furukawa Review, No. 25

2004

59

S121A/S121M Fusion Splicers for FTTH Applications

Photo 4
Table 1

Photo 5

LCD display.

Specifications of S121A.

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making it as portable as a camera.
2.4 Easy Operation
As in previous models, the use of fiber holders from preprocessing to connection ensures easy operation for anyuser. Once an optical fiber is set to a splicer, connection ismade automatically at the push of a button. An enlarged
image of the fiber is displayed using a CCD camera
and 2.5-inch LCD monitor, to ensure stable, high-quality
connections. The type of optical fiber connection canbe switched easily between single-mode fiber and multimode fiber by selecting a pre-set connection program.
An operation guide and the remaining battery charge aredisplayed on screen.

Appearance of S121M.

reinforcement tool to the back of the unit, connections
can be strengthened using popular Japanese thermal
protection sleeves or the ULTRAsleeve®, which is used
extensively in the United States.

3.

PRODUCT SPECIFICATIONS

Very low connection loss is ensured in terminal
connections (average 0.1 dB or less in the case of singlemode fiber connections), and operability and reliability
are good.

4.

FUTURE PRODUCT DEPLOYMENTWe added the S121A and S121M splicers to the productlineup in November 2003.
They can be used in the branch portion in front of aterminus, because they can splice from one to four fibers
simultaneously.
For more information, please contact:
FITEL Products Division
TEL: +81-3-3286-3445
FAX: +81-3-3286-3708

2.5 Optional Accessories
Two power supplies are available: a removable,
rechargeable battery included as standard equipment,
and an optional DC adaptor to allow AC power input.
And by attaching an optional heat shrink oven or simple† ULTRAsleeve ® is a registered trademark of The Siemon
Company.

Furukawa Review, No. 25200460