Technical Data; Galvanic Interface; Application - ABB REL 551-C1*2.5 Technical Reference Manual

1.3.2
1.4
1.4.1
1.4.2
Remote end data communication

Technical data

Table 122: DCM-FOM - Fibre optical communication module
Optical interface
Type of fibre
Wave length
Optical transmitter
injected power
Optical receiver
sensitivity
Optical budget
Transmission distance
Optical connector
Protocol
Data transmission
Transmission rate
Clock source
a)
depending on optical budget calculation, see example in Application manual for REC 561

Galvanic interface

Application

The galvanic data communication modules according to V35/36 DCM-V36 contra, DCM-V36
co, X.21 DCM-X21, RS530/422 DCM-RS 530 contra, DCM-RS 530 co can be used for galvanic
short range communication covering distances up to 100 m in low noise environments. Only
contra-directional operation is recommended for best system performance. These modules are
designed for 64 kbit/s operation but can also be used at 56 kbit/s.

Technical data

Table 123: DCM - Galvanic data communication module
Interface type
V.36/V11 Co-directional (on request)
V.36/V11 Contra-directional
X.21/X27
RS 530/RS422 Co-directional (on request)
Graded-index multimode
50/125 μ m or 62,5/125 μ m
1300 nm
LED
-17 dBm
PIN diode
-38 dBm
21 dB
a)
typical 15-20 km
Type FC-PC
ABB specific
Synchronous, full duplex
64 kbit/s
Internal or derived from received
signal
According to standard
ITU (CCITT)
ITU (CCITT)
ITU (CCITT)
EIA
Chapter 9
Data communication
Single mode 9/125 μ m
1300 nm
LED
-22 dBm
PIN diode
-38 dBm
16 dB
a)
typical 40-60 km
Type FC-PC
ABB specific
Synchronous, full duplex
64 kbit/s
Internal or derived from received
signal
Connector type
D-sub 25 pins
D-sub 25 pins
D-sub 15 pins
D-sub 25 pins
117