Nortel Networks 311 사용자 설명서
Electrical specifications
187
The Lineside T1 card requires +15 V, –15 V, and +5 V from the backplane.
One NT8D06 Peripheral Equipment Power Supply ac or NT6D40 Peripheral
Equipment Power Supply dc can supply power to a maximum of eight
Lineside T1 cards.
One NT8D06 Peripheral Equipment Power Supply ac or NT6D40 Peripheral
Equipment Power Supply dc can supply power to a maximum of eight
Lineside T1 cards.
Table 83
Lineside T1 card - power required
Lineside T1 card - power required
Voltage
Current (max.)
+ 5.0 V dc
1.6 Amp
+15.0 V dc
150 mA.
–15.0 V dc
150 mA.
The Lineside T1 card obtains its power from the Option 11C’s backplane.
Table 84
Lineside T1 card: power required
Lineside T1 card: power required
Voltage
Current (max.)
5.0 V dc
150 mA.
+15.0 V dc
1.6 Amp
-15.0 V dc
1.3 Amp
Foreign and surge voltage protections
In-circuit protection against power line crosses or lightning is not provided
on the Lineside T1 card. It does protect against accidental shorts to –52 V
dc analog lines.
on the Lineside T1 card. It does protect against accidental shorts to –52 V
dc analog lines.
When the card is used to service off-premise terminal equipment through
the public telephone network, install a Channel Service Unit (CSU) as part
of the terminal equipment to provide external line protection.
the public telephone network, install a Channel Service Unit (CSU) as part
of the terminal equipment to provide external line protection.
In-circuit protection against power line crosses or lightning is not provided
on the Lineside T1 card. It does protect against accidental shorts to –52 V
dc analog lines.
on the Lineside T1 card. It does protect against accidental shorts to –52 V
dc analog lines.
When the card is used to service off-premise terminal equipment through
the public telephone network, install a Channel Service Unit (CSU) as part
of the terminal equipment to provide external line protection.
the public telephone network, install a Channel Service Unit (CSU) as part
of the terminal equipment to provide external line protection.
Environmental specifications
lists
the environmental specifications of the Lineside T1 card.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
01.04
Standard
Release 5.0
23 May 2008
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.