Power Requirements; Environmental Specifications; Foreign And Surge Voltage Protection; Connector Pin Assignments - Nortel Enterprise 1000 Reference Manual

Page 122 of 236

Power requirements

Table 23

Power requirements

Voltage
+15.0 V dc
–15.0 V dc
+8.5 V dc
–48.0 V dc

Environmental specifications

Table 24

Environmental specifications

Parameter
Operating temperature
Operating humidity
Storage temperature

Foreign and surge voltage protection

Connector pin assignments

553-3023-211 Standard 1.00 June 2001
NT8D15 E&M Trunk Card
Table 23 lists the power requirements for the E&M trunk card.
Tolerance
±5%
±5%
±2%
±5 %
Table 24 provides the environmental specifications for the E&M trunk card.
The E&M trunk card meets CS03 over-voltage (power cross) specifications
and FCC Part 68 requirements.
The E&M trunk card brings the four analog trunks to the backplane through
a 160-pin connector shroud. External equipment connects to the card at the
back of the Media Gateway and Media Gateway Expansion using a 25-pin
Max current
200 mA
200 mA
200 mA
415 mA
Specifications
0 to +60 degrees C
(32 to +140 degrees F), ambient
5 to 95% RH (noncondensing)
–40 to +70 degrees C
(–40 to +158 degrees F)