Configuration; Figure 1. Terminal Multiplexer; Figure 2. Add/Drop Multiplexer; Figure 3. "Hub" Stm-1 - Alcatel 1850 TSS-320 Technical Handbook

1.1.1 Configuration

• Terminal multiplexer (see Figure 1. on page 14).
The NE is provided with an STM-N (with N=1÷64) a station interface (eventually stand-by too)
to be connected to a Digital Electronic Cross-Connect or to a higher hierarchical line system.
PDH/DATA PORTS
• Add/Drop Multiplexer (see Figure 2. on page 14)
The NE can be programmed to drop (insert) signals from (into) the STM-N (with N=1÷64)
stream.
Part of the signal pass-through between the line sides, defined A and B in Figure 2. on page 14.
SDH PORT
SDH PORT
(SPARE)
• "HUB" STM-N (see Figure 3.on page 14)
The NE permits to drop/insert STM-N tributaries into a multiple stream and then branch them
off in HUB structures.
SDH PORT
SDH PORT
(SPARE)
• Mixed Configuration
The NE can handle in the same node all the previously configuration thus performing a mixed
configuration.
Alcatel 1850 TSS-320 Rel.1.1
14/84 8DG 07734 CAAA Edition 01
NE

Figure 1. Terminal multiplexer

Side A
NE
SDH, PDH/DATA PORTS

Figure 2. Add/Drop Multiplexer

NE
SDH PORT

Figure 3. "HUB" STM-1

SDH PORT
SDH PORT
Side B
SDH PORT
SDH PORT
(SPARE)
SDH PORT
SDH PORT
(SPARE)
Technical Handbook SDH
(SPARE)
General