Overload level, Environmental specifications – Nortel Networks 1000 User Manual
Page 472
472
NT8D09 Analog Message Waiting Line card
must be installed. Details on installing protection devices are given in
“Environmental specifications” (page 317)
. Off-premise telephones served
by cable pairs routed through the central office, or crossing a public
right-of-way, can be subject to a requirement for on-card protection, and
MDF protectors may not be acceptable. Check local regulations before
providing such service.
In-circuit protection against power line crosses or lightning is not provided
on the Analog Message Waiting line card. When the Analog line card
is used to service off-premise telephones, the NTAK92 Off-premise
protection module must be used. Check local regulations before providing
such service.
In-circuit protection against power line crosses or lightning is not provided
on the NT8D09 Analog Message Waiting Line Card. When the analog line
card is used to service off-premise telephones, the NTAK92 Off-Premise
protection module must be used. Check local regulations before providing
such service.
Overload level
Signal levels exceeding +7 dBm applied to the tip and ring cause distortion
in speech transmission.
Overload level
Signal levels exceeding +6.5 dBm applied to the tip and ring cause
distortion in speech transmission.
Overload level
Signal levels exceeding +7 dBm applied to the tip and ring cause distortion
in speech transmission.
Overload level
Signal levels exceeding +7 dBm applied to the tip and ring cause distortion
in speech transmission.
Environmental specifications
Table 197 "Analog message waiting line card - environmental
specifications" (page 472)
lists the environmental specifications for the
analog message waiting line card.
Table 197
Analog message waiting line card - environmental specifications
Parameter
Specifications
Operating temperature
0
to +60
C (+32 to +140
F), ambient
Operating humidity
5 to 95% RH (non-condensing)
Storage temperature
–40
to +70
C (–40
to +158
F)
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
02.06
Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.