ABB REC670 Product Manual page 69

ABB
Bay control REC670
Pre-configured
Product version: 1.1
Remote communication
Table 77. Line data communication module
Characteristic
Type of LDCM
Type of fibre
Wave length
Optical budget
Graded-index multimode
62.5/125 mm,
Graded-index multimode
50/125 mm
Optical connector
Protocol
Data transmission
Transmission rate / Data rate 2 Mb/s / 64
Clock source
*) depending on optical budget calculation
**) C37.94 originally defined just for multimode; using same header, configuration and data
format as C37.94
Hardware
Range or value
Short range Medium range
(SR) (MR)
Graded-index Singlemode
multimode 9/125 µm
62.5/125 µm
or 50/125 µm
850 nm 1310 nm
13 dB (typical 22 dB (typical
distance distance 80 km *)
about 3 km *)
9 dB (typical
distance
about 2 km *)
Type ST Type FC/PC
C37.94 C37.94
implementation
**)
Synchronous Synchronous
2 Mb/s / 64 kbit/
kbit/s s
Internal or Internal or
derived from derived from
received received signal
signal
1MRK 511 192-BEN B
Issued: June 2010
Long range (LR)
Singlemode 9/125 µm
1550 nm
26 dB (typical distance
110 km *)
Type FC/PC
C37.94 implementation **)
Synchronous
2 Mb/s / 64 kbit/s
Internal or derived from
received signal
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