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Chassis - CMS (14 Slot)
The chassis is the 19" rack-mountable unit which houses all WAN cards, System Controller/CPU cards, DSP
cards, and power supplies. The two system fans are installed at the top of the chassis. See the following sec-
tions for unit front and unit back details; both the AC version and DC versions are illustrated and explained.
Front (with AC power)
NOTE:
For pictorial purposes, Figure 2-1 shows the unit with 1 DS1 card and the CPU card.
WAN
Card Slots
Ground Strap Socket
•
Card Slots. Fourteen slots are available for WAN cards, DSP Resource Cards, DS1 cards, and the CPU/
System Controller Card.
•
Power Supplies. Two load-sharing AC power supplies. The load sharing feature enables one power sup-
ply to take over if the other fails.
•
System Fans. Two system fans, accessible through a swing down panel via thumb screws are used to
cool the chassis. These fans are "hot-swappable", meaning you can remove/replace the fans while the
unit is operational.
•
Reset Button. Enables you to reset the system. This function will be supported in a future release.
•
Ground Strap Socket. A ground connection is provided for ESD protection.
P/N 480-0005-00-15
Figure 2-1 Tenor CMS Front View - AC unit
TM
Ground
Strap
Air Inlet
Chapter 2: Hardware Components
Alarm
Status
Alarm
Status
CPU
PCI
CPU
PCI
1
2
DSP
Bank
1
2
Link
TX/RX
10/100
Q
UINTUM
Ethernet
T
ECHNOLOGIES, INC.
Reset
TM
Q
TM
Q
UINTUM
UINTUM
TECHNOLOGIES,
TECHNOLOGIES,
INC.
INC.
Span
Status
Link TX/RX
1
5
1
2
2
6
3
3
7
4
10/100
4
8
Ethernet
TM
TM
CPU
DS1
Hot Swap
Hot Swap
Fault
Reset
+3.3V
+5V
+12V
-12V
Reset
Button
Chassis LEDs
System Fans
TM
Power
Supplies
Q
UINTUM
T
ECHNOLOGIES, INC.
Fault
Air Filter
On/Off Power
2-3
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