System information

FCD 901 48
Issue R2A, 07.2009
XMP1 Release 5.5 System Description
Interfaces
Page 1-6 Proprietary Information Aastra
1.1.2 Interfaces
The XMP1 system offers the user a great variety of interfaces for voice,
ISDN, data and LAN services. The interfaces available are briefly described
in the following sections.
1.1.2.1 Service Units
Subscriber interfaces for voice (KZU)
KZU FEK
FEK module with 8 interfaces for 2-wire or 4-wire transmission with E&M
signalling
• Connection of analog exchanges or CF systems
• Software-controlled level adaptation
KZU OSX
Module with four interfaces, this interfaces can be configured as SUB, EX,
OB and OBG.
KZU SUB
SUB module with 8 interfaces for 2-wire connection of CB subscribers
(POTS) in the following configurations:
• To exchanges: KZU-EX <-> KZU SUB (subscriber extension)
• As point-to-point connection: KZU-SUB <-> KZU SUB
KZU EX
EX module with 8 interfaces for 2-wire connection to exchanges (POTS
extension)
• To exchanges: KZU-SUB <-> KZU-EX (see above)