Pdu (Power Distribution Unit) - ADC ClearGain Dual Inline Tower Mounted Amplifier System User Manual

ADCP-75-214 • Issue 2 • September 2006
5.3

PDU (Power Distribution Unit)

Table 4 provides typical specifications for the PDU.
CATEGORY
Electrical
Connector and
LED
Physical
Communication
Page 20
© 2006, ADC Telecommunications, Inc.
Table 4. Power Distribution Unit (PDU) Specifications
PARAMETER
Input voltage range
Output voltage
Output voltage accuracy
Output ripple
PDU Inrush Current
Short circuit protection
Outputs for TMA's
Input connector
General alarm connector
Communications link between BTS
and RET
Indicators
Dimensions (W x H x D)
Weight
Color
Pin Number Signal
1 RS485 A
2 RS485 B
3 RS485 GND
PDU only receives control command from BTS and modulates 2.176MHz Modem
Signal and transmit to TMA through SMB connector, and vice versa.
Resistance between RS485 A and
RS485 B
Resistance between RS485 A or
RS485 B and DC return / RS485 GND
Capacitance between RS485 A or
RS485 B
Capacitance between RS485 A or
RS485 B and DC/RS485 GND
SPECIFICATION
20–56VDC positive/negative ground
(Input polarization protected)
15V, 4% (Over voltage protection)
4% in 20mA – 400mAMAX 10% in 1.5A
100mV pk – pk
ETS300132-2, Part 2
1500mA, 10%
SMB connector Male (3 pcs)
Molex Micro-fit 43045 - 0400
Molex Mini-Fit 39-30-3035
Molex Mini-Fit 39-30-3035
Two color LED (3 pcs) (green and yellow)
Red LED 1 pcs
194.4 x 43.6 x 100.0 mm
(7.7 x 1.7 x 3.9 inches)
0.5 Kg (1.2 lbs.)
Gray Metallic
Comments
RET control command AISG Layer2. ISO/
IEC 8482:1993 (RS485).
> 1k Ohm
> 1k Ohm
< 1nF
< 1nF