Nortel Networks 1000 - Manual (Page 438)

438 NT8D02 and NTDK16 Digital Line cards
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 NT8D02 Digital Line Card. The NT8D02 Digital Line Card does,
however, have protection against accidental shorts to –52 V dc analog
lines.
When the card is used to service off-premise telephones, primary and
secondary Main Distribution Frame (MDF) protection must be installed.
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.
Environmental specifications
Table 176 "Digital line card - environmental specifications" (page
438)
shows the environmental specifications of the card.
Table 176
Digital 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)
Table 177 "Digital line card - environmental specifications" (page
438)
shows the environmental specifications of the card.
Table 177
Digital 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)
Table 177 "Digital line card - environmental specifications" (page
438)
shows the environmental specifications of the NT8D02 Digital Line
Card.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.