Nortel Networks Video Gaming Accessories 553-3001-211 Manual De Usuario
Page 642 of 894
NT8D15 E&M Trunk card
Environmental specifications
Table 200 provides the environmental specifications for the E&M trunk card.
Foreign and surge voltage protection
The E&M trunk card meets CS03 over-voltage (power cross) specifications
and FCC Part 68 requirements.
and FCC Part 68 requirements.
Connector pin assignments
The E&M trunk card brings the four analog trunks to the backplane through
a 160-pin connector shroud.The backplane is cabled to the I/O panel on the
rear of the module, which is then connected to the Main Distribution Frame
(MDF) by 25-pair cables.
a 160-pin connector shroud.The backplane is cabled to the I/O panel on the
rear of the module, which is then connected to the Main Distribution Frame
(MDF) by 25-pair cables.
Telephone trunks connect to the E&M trunk card at the MDF using a wiring
plan similar to that used for line cards.
plan similar to that used for line cards.
A typical connection example is shown in Figure 150 on
. A list of
the connections to the E&M trunk card in the various 2-wire modes is shown
in Table 201. A list of the connections to the E&M trunk card in the various
4-wire modes is shown in Table 202 on
in Table 201. A list of the connections to the E&M trunk card in the various
4-wire modes is shown in Table 202 on
.
Table 200
Environmental specifications
Environmental specifications
Parameter
Specifications
Operating temperature
0 to +60 degrees C
(32 to +140 degrees F), ambient
(32 to +140 degrees F), ambient
Operating humidity
5 to 95% RH (non-condensing)
Storage temperature
–40 to +70 degrees C
(–40 to +158 degrees F)
(–40 to +158 degrees F)