Specifications

1-4 Product Description
Chapter 1 - Introduction
XTS-IP - Installation Manual December 2005
Key Service Unit
The Key Service Unit (KSU) is a metal frame cabinet designed for wall or rack mounting. It
contains a backplane with connectors that include a PSU slot, 9 universal slots, an MPB slot, an
LMU slot, a RAU slot, and PFTU and RGU connectors. The XTS-IP KSU consists of Cabinet 0, and
can include optional Cabinets 1, 2, 3, 4, and 5 for added capacity. Cable ties are located on the
front edge of the cabinet to allow connecting cables to be stored neatly.
The connecting cables for the stations and CO Lines exit through the outlet in the bottom of
KSU and can be connected to the Main Distribution Frame (MDF) or to a user installed
termination point.
Figure 1-1: KSU Structure
Figure 1-2: XTS-IP Default Card Layout for Cabinet 0
CABINET 0
CABINET 2
CABINET 1
CABINET 3
CABINET 5
CABINET 4
LINK CABLE
LMU1
LMU2 LMU2
LMU1
LMU2
LMU2
LMUE
SLOT0123456789
CARD
D
T
2
4
D
T
2
4
D
T
2
4
S
L
1
2
N
O
N
E
L
C
O
8
L
C
O
8
L
C
O
8
N
O
N
E
M
P
B