NEC NEAX 2000 IPS - Analog Network

CHAPTER 1 GENERAL INFORMATION
– 10 – NWA-008853-001 Rev.3.0
97ch1001.fm
Analog Network
When No. 7 CCIS is provided via an analog network, the CCH is connected to the Common Signaling
Channel Controller in the distant office via MODEMs, directly. Voice signals are transmitted/received
through analog trunks (LDT/ODT).
The following figure shows the system configuration of No. 7 CCIS provided via analog network.
No. 7 CCIS with LDT/ODT
MP
TDSW
DIGITAL PBX
M: MODEM
LDT/ODT
CCH
PBX
MP
LDT/ODT
LDT/ODT LDT/ODT
M CCHM
TDSW
MP
TDSW
DIGITAL PBX
M: MODEM
LDT/ODT
CCH
PBX
MP
LDT/ODT
LDT/ODT LDT/ODT
M CCHM
TDSW
LDT/ODT LDT/ODT
• Common Signaling Data Link via LDT/ODT
• Common Signaling Data Link via MODEM
SYSTEM OUTLINE