Hardware reference guide

Modbus Plus NOM
308
35013379 02 October 2007
Other Tools The following table shows other tools that may be needed for fiber optic links.
Cables It is recommended that you use 62.5/125 μm cable (such as AMP 503016-1,
AMP 502986-1, or equivalent) with a maximum attenuation of 3.5 dB/km in most of
the configurations.
Product Part Number Description/Use
3M (Photodyne) Optical
Source Driver
9XT Hand-held optical source driver (requires
a light source)
3M (Photodyne) Optical
Light Source
1700-0850-T 850 nm Light Source, ST Connectors for
9XT
3M (Photodyne) Power
Meter
17XTA-2041 Hand-held Fiber Optic Power Meter
3M Optical Light Source,
660 nm, visible
7XE-0660-J Use with 9XT to troubleshoot raw fiber,
requires FC/ST patch cord
3M FC/ST Patch Cord BANAV-FS-0001 Connects FC connector on 7XE to ST
3M Bare Fiber Adapter,
ST-compatible
8194 Permits use of above source and meter
to test raw fiber (two required)
Note: Modicon recommends using the 990XCA65609 cable.
When passive star couplers are used, 100/140 micron cable (such as
AMP503016-3, AMP502986-3, or equivalent) with a maximum attenuation of 5.0
dB/km is recommended because higher optical power can be pumped in 100 μm
cable and as a result, greater distance (up to 1 km) between units can be achieved.
Note: All cables must have a maximum cable diameter of not more than 3 mm at
the terminal side.
This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.com