Communication Structure With Pdh/Sdh Port Synchronized From Transceiver 21-219 - Hitachi 670 Series Application Manual

Section 5
Communication set-up
LOCAL
IEC07000156 V1 EN-US
Figure 80:
IED
Transceiver 21–219
SDH MUX
5.6.3 Communication structure with PDH/SDH port synchronized
from transceiver 21-219
Setting up a PDH telecommunication network requires that synchronization is provided from an
external source, for example, from one transceiver 21-219 (see Figure 81). The SDH multiplexer
(SDH MUX) is thus set not to interfere with synchronization. This requirement is usually fulfilled by
setting the SDH MUX to transparent mode.
80
< 10 m
SDH
IED
Transceiver
MUX
21-219
Multi-mode
fibre-optic
< 3.5 km Galvanic
connection
interface
G.703 E1
(2Mbit)
Slaves
SDH
master
Communication structure with transceiver 21-219 port synchronized from SDH
master clock
Terminal used for binary signal transfer
Optical-to-electrical interface converter
SDH multiplexer
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< 10 m
SDH
MUX
Galvanic
connection
interface
G.703 E1
(2Mbit)
G.704 (framed etc.) Slaves (external clock)
1MRK505382-UEN Rev. K
REMOTE
IED
Transceiver
21-219
Multi-mode
fibre-optic
< 3.5 km
IEC07000156-1-en.vsdx
GUID-59042A8F-D4CA-41AA-A4B6-17B6A99E199A v1
Communication set-up, 670/650 series
Application Guide