ZyXEL Communications Multi-service Access Platform MSAP2000 - Manual (Page 43)

3. Application and Services
MSAP2000 Technical Manual V3.0 3-5
3.5. A One-Stop Solution for the Telephone Service Network
MSAP2000 is a next generation Digital Loop Carrier (NGDLC),
which supports various types of telephone network
technologies. MSAP2000 can provide connection to legacy
PSTN exchange devices via dual-wire analog voice FXO or
V5.2 interfaces, and its Packet Voice Module (PVM) provides
Softswitch connections as well. MSAP2000’s modular design
allows service providers to flexibly expand their system capacity
at their own pace, which will help to save on operational cost, in
the initial stages of business startup. With a STM-1/E1 trunk
interface and V5.2 switch interface, MSAP2000 can provide up
to 7560 lines of voice services. MSAP2000 also supports
PSTN and Softswitch voice interfaces, which include:
(1) Dual-wire PSTN exchange interface: FXO
(2) E1 CCS exchange interface: V5P (V5.2 Protocol Processing
Module)
(3) Softswitch interface: PVM (Packet voice module)
VF Interface to PSTN
MSAP2000 supports connection between Dual-wire Voice
Frequency (VF) interfaces and traditional PSTN exchange
servers. To ensure that the Caller ID is transmitted to
subscriber phones, MSAP2000 delivers 1:1 non-concentrated
operation.
V5.1/V5.2
MSAP2000 supports V5.2 interfaces which comply with ITU-T
G.964, G.965 standards. One V5.2 interface can provide up to
16 E1 interfaces, which can support 480 lines of voice
subscribers under a 1:1 non-concentrated mode. V5.2
Protocols are concentrated on one V5P Module, in MSAP2000.
One V5P Module can simultaneously support 4 V5.2exchange
interfaces, meaning that one MSAP2000 System will provide
four sets of V5.2 interfaces. This amounts to a capacity of 63
E1 interfaces, and will support 7560 lines of voice services,
under 1:1 non-concentrated operation. V5P also supports 1:N
concentrated operation.