Nortel Networks Video Gaming Accessories 553-3001-211 Manual De Usuario
NTAK20 Clock Controller daughterboard
Page 731 of 894
backplane line. It designates the DTI/PRI motherboard as a primary reference
source. The secondary reference is obtained from another DTI/PRI card,
which is designated by a technician. No other clock sources are used.
source. The secondary reference is obtained from another DTI/PRI card,
which is designated by a technician. No other clock sources are used.
External timing interface
The clock controller provides an external timing interface and accepts two
signals as timing references. An external reference is an auxiliary timing
clock which is bridged from a traffic carrying signal and is not intended to be
a dedicated non-traffic-bearing timing signal. The clock controller uses either
the external/auxiliary references or the DTI/PRI references.
signals as timing references. An external reference is an auxiliary timing
clock which is bridged from a traffic carrying signal and is not intended to be
a dedicated non-traffic-bearing timing signal. The clock controller uses either
the external/auxiliary references or the DTI/PRI references.
Hardware integrity and regulatory environment
The clock controller complies with the following hardware integrity and
regulatory specifications:
regulatory specifications:
Item
Specification
EMI
FCC part 15 sub- part J
CSA C108.8
CISPR publication 22
ESD
IEC 801-2
Temperature
IEC 68-2-1
IEC 68-2-2
IEC 68-2-14
Humidity
IEC 68-2-3
Vibration/Shock
IEC 68-2-6
IEC 68-2-7
IEC 68-2-29
IEC 68-2-31
IEC 68-2-32