Connection To A Multiplexer Via Fo-Box - Siemens SWT 3000 Equipment Manual

!
CAUTION
Exercise caution with laser beams of the optical plug-in modules.
The laser beams can damage your eyes. If you do not comply with the safety notes, this will result in
medium severe or slight injuries.
Do not look directly into the optical fiber terminals of the active optical plug-in modules, not even with
²
optical devices.
NOTE
i
i
Laser class 1 is adhered to in compliance with EN 60825-1 and EN 60825-2, in the case of ≤ 62.5 μm/
125 μm optical fibers.

Connection to a Multiplexer via FO-Box

2.9.4
[dwconswf-280611-01.tif, 1, en_US]
Figure 2-14
The SWT 3000 is operating via fiber-optic cable and a Fiber-Optic Box (FO-Box) for the interface conversion
with a PDH- or SDH-Multiplexer. For each transmission direction, a separate fiber is necessary. The FO-Box
contains the FOM with the electrical/optical conversion, the interface to the multiplexer, and a power supply.
An adaptor is installed for the conversion from the system connector to the alarm relay, the connectors for the
digital interface (X.21/G703.1/G703.6), and the power supply connector.
Table 2-18
Fiber-optic module
Fiber type
Wavelength
Optical connector
Range
2 x LED
Digital interface
Bit rate
Smart Communication, SWT 3000 Teleprotection, Equipment Manual
C53000-G6040-C605-1, Edition 03.2020
Connection of the SWT 3000 via Fiber-Optic Cable to a FO-Box
Specification of the Fiber-Optic Box (FO-Box)
SFP module
multi-mode with modules using 850-nm wavelength, single-mode with modules
using 1300-nm wavelength
850 nm or 1300 nm
LC-connector
Up to 2 km at 850 nm (depending on the attenuation of the fiber)
No minimum attenuation limit for 1300 nm
Tx-Alarm and Rx-Alarm (RX + F6UE-Alarm)
X.21, G703.1, or G703.6 selectable with jumpers
64 Kbps or 2 Mbps
Functional Description
2.9 Fiber-Optic Connection
65