I/O And Data Traffic Functions; Pim (Pdh/Async Input/Output) Modules; Sim (Sdh/Sonet Input/Output) And Sam (Sdh/Sonet Aggregate) Modules - Eci Telecom XDM-100 General Description Manual

System Design

4.4 I/O and Data Traffic Functions

4.4.1 PIM (PDH/Async Input/Output) Modules

The function of the PIM module is to link PDH/Async interface signals to the XDM-
100's cross-connect matrix (MXC).
The XDM-100 supports PIM modules for different bitrates: 2 Mbps (E1), 34 Mbps
(E3), 45 Mbps (DS-3), and 52 Mbps (STS-1).
A PIM module occupies a single I/O slot in the XDM-100 shelf, providing all the
functionality required to deploy a transport network, including Performance
Monitoring (PM) for PDH/Async interfaces, 2 Mbps retiming (for PBAX
synchronization), and 2 Mbps/45 Mbps frame for data applications. Eight PIM
modules can be installed in the designated I/O slots.
The PIM consists of line interface circuits, PDH/Async signal processing circuits,
and internal interfaces to the two MXC cards. The physical line interfaces and the
traffic protection circuits are located in the electrical connection modules.
4.4.2 SIM (SDH/SONET Input/Output) and SAM
(SDH/SONET Aggregate) Modules
SIM Modules
The SIM modules provide STM-1/OC-3 and STM-4/OC-12 tributary interfaces that
are linked to the central XDM-100 MXC card. To provide this functionality, the
optical SIM accommodates a plug-in Small Form-factor Pluggable (SFP) transceiver
module that can be easily replaced, giving the system additional flexibility.
The XDM-100 supports the following SDH/SONET tributary interfaces:
4 x STM-1 electrical interfaces
♦
4 x STM-1/OC-3 optical modular SFP interfaces
♦
2 x STM-1/OC-3 electrical and 2 x STM-1 optical modular interfaces
♦
2 x STM-4/OC-12 optical modular SFP interfaces
♦
4-8 ECI Telecom Ltd. Proprietary
XDM® -100
417006-2005-013-A02