This section contains information about the AIR unit connection interfaces.
The AIR unit connection interfaces are shown in Figure 8, Figure 9, Figure 10, Figure 11, Figure 12, and Figure 13, and are listed in Table 18, Table 19, Table 20, Table 21, Table 22, and Table 23.
Ge6384C 1
+ –
+ –
2 3
4 - AIS G IN
C
E D B
I
H
G F A
Figure 8 AIR 32 B4A B2P (1.4 m) Unit Connection Interfaces and Optical Indicators
Table 18 AIR 32 B4A B2P (1.4 m) Unit Connection Interfaces and Optical Indicators
Position Description Marking Connector
Types
Cable Types
A Grounding point M8 bolt
B Optical cable 1 (1) 1 LC
C Optical cable 2 (1) 2 LC
Position Description Marking Connector Types
Cable Types
D -48 V DC power supply
1 POWER Screw terminal
connector
E Optical indicators (1)
, , ,
-
-F RF connector (2), -45° 4–AISG IN 7/16 connector
G RF connector (2), +45° 3 7/16 connector
H RF connector (3), -45° 2 7/16 connector
I RF connector (3), +45° 1 7/16 connector
(1) AIR unit active part interface
(2) AIR unit passive antenna, right antenna column seen from antenna emitting side.
(3) AIR unit passive antenna, left antenna column seen from antenna emitting side.
2 +
– –
1
+ –
Ge6384D 4 - AISG
IN +
3
C
E D B
J I K
H
G F A
Figure 9 AIR 32 B7A HBP LBP and AIR 32 B7AA HBP LBP (2.0 m) Unit Connection Interfaces and Optical Indicators
Table 19 AIR 32 B7A HBP LBP and AIR 32 B7AA HBP LBP (2.0 m) Unit Connection Interfaces and Optical Indicators
Position Description Marking Connector
Types Cable Types
A Grounding point M8 bolt
B Optical cable 1 (1) 1 LC
C Optical cable 2(1) 2 LC
D -48 V DC power supply 1 POWER Screw terminal
connector
E Optical indicators (1)
, , ,
-
-Position Description Marking Connector Types
Cable Types F RF connector(2), -45° B1-AISG IN 7/16 connector
G RF connector (2), +45° B1 7/16 connector
H RF connector (3), -45° R1-AISG IN 7/16 connector
I RF connector (3), +45° R1 7/16 connector
J RF connector, -45° B2-AISG IN 7/16 connector
K RF connector, +45° B2 7/16 connector
(1) AIR unit active part interface
(2) AIR unit passive antenna, right antenna column seen from antenna emitting side.
(3) AIR unit passive antenna, left antenna column seen from antenna emitting side.
Ge10745A
G
I H F
B
A
E C
D
Figure 10 AIR 32 B2A B66AA (1.4 m) Unit Connection Interfaces and Optical Indicators
Table 20 AIR 32 B2A B66AA (1.4 m) Unit Connection Interfaces and Optical Indicators
Position Description Marking Connector
Types
Cable Types A Optical indicators B2
, , ,
-
-B -48 V DC power supply
1 B2 POWER Screw terminal
connector
C Optical cable 1 B2 1 LC
D Optical cable 2 B2 2 LC
E Grounding point M8 bolt
Position Description Marking Connector Types
Cable Types
F Optical cable 1 B66A 1 LC
G Optical cable 2 B66A 2 LC
H -48 V DC power supply
1 B66A POWER Screw terminal
connector
I Optical indicators B66A
, , ,
-
-Ge9515A
C
E D B
J K
I A H
F G
Figure 11 AIR 32 B7A B3A LBP and AIR 32 B7A B66AA LBP (2.0 m) Unit Connection Interfaces and Optical Indicators
Table 21 AIR 32 B7A B3A LBP and AIR 32 B7A B66AA LBP (2.0 m) Unit Connection Interfaces and Optical Indicators
Position Description Marking Connector
Types Cable Types
A Grounding point M8 bolt
B Optical cable 1(1) 1 LC
C Optical cable 2(1) 2 LC
D -48 V DC power supply 1 POWER Screw terminal
connector
E Optical indicators(1)
, , ,
-
-F Optical indicators(1)
, , ,
-
-G -48 V DC power supply 1 POWER Screw terminal
connector
H Optical cable 4(1) 2 LC
I Optical cable 3(1) 1 LC
Position Description Marking Connector Types
Cable Types J RF connector(2), -45° R1-AISG IN 7/16 connector
K RF connector(2), +45° R1 7/16 connector
(1) AIR unit active part interface
(2) AIR unit passive antenna, left antenna column seen from antenna emitting side.
Ge11264A
G
I H F
D E C B A
Figure 12 AIR32 B2A B66AP and AIR32 B66AA B2P (1.4 m) Unit Connection Interfaces and Optical Indicators
Table 22 AIR32 B2A B66AP and AIR32 B66AA B2P (1.4 m) Unit Connection Interfaces and Optical Indicators
Position Description Marking Connector
Types
Cable Types
A RF connector(1), +45° 1 7/16 connector
Position Description Marking Connector Types
Cable Types
B RF connector(1), -45° 2 7/16 connector
C RF connector(2), +45° 3 7/16 connector
D RF connector(2), -45° 4–AISG IN 7/16 connector
E Grounding point M8 bolt
F Optical cable 1 (3) 1 LC
G Optical cable 2(3) 2 LC
H -48 V DC power supply 1 POWER Screw terminal
connector
I Optical indicators (3)
, , ,
-
-(1) AIR unit passive antenna, left antenna column seen from antenna emitting side.
(2) AIR unit passive antenna, right antenna column seen from antenna emitting side.
(3) AIR unit active part interface
2
Figure 13 AIR32 B2A B7P HBP, AIR32 B3A B7P HBP AIR32 and B66AA B7P HBP (2.0 m) Unit Connection Interfaces and Optical Indicators
Table 23 AIR32 B2A B7P HBP, AIR32 B3A B7P HBP AIR32 and B66AA B7P HBP (2.0 m) Unit Connection Interfaces and Optical Indicators
Position Description Marking Connector
Types
Cable Types A Optical indicators(1)
, , ,
-
-B -48 V DC power supply 1 POWER Screw terminal
connector
C Optical cable 1(1) 1 LC
D Optical cable 2(1) 2 LC
E Grounding point M8 bolt
Position Description Marking Connector Types
Cable Types F RF connector(2), -45° Y1-AISG IN 7/16 connector
G RF connector(2), +45° Y1 7/16 connector
H RF connector(3), -45° R1-AISG IN 7/16 connector
I RF connector(3), +45° R1 7/16 connector
J RF connector, -45° Y2-AISG IN 7/16 connector
K RF connector, +45° Y2 7/16 connector
(1) AIR unit active part interface
(2) AIR unit passive antenna, right antenna column seen from antenna emitting side.
(3) AIR unit passive antenna, left antenna column seen from antenna emitting side.
The optical indicators are shown in Figure 14. The optical indicator panel can be hidden behind a sliding cover.
Ge5874A
Figure 14 Optical Indicators
5.1 Position A, Grounding Interface
The AIR unit must be grounded to protect it from overvoltage and lightning strikes. The grounding interface on the AIR unit accepts a metal loop on a short, coated cable. The loop is then bolted into place with an M8 nut and washers as shown in Figure 15 (2.0 m unit) and Figure 16 (1.4 m unit).
Ge6385F 2
+
– –
1
+ –
4 - AISG IN +
3
Figure 15 AIR 32 (2.0 m) Grounding Interface
Ge6385E
Figure 16 AIR 32 (1.4 m) Grounding Interface
5.2 Position B and C, Interface for Optical Cables to Main Unit
Optical cables carry traffic and timing signals between the AIR unit active antenna part and the RBS main unit. A Small Form-factor Pluggable (SFP) module is integrated in the AIR unit to connect the optical cable. The single mode SFP is built in and is not replaceable.The SFP module in the unit connected to the AIR unit, must be compatible with the integrated SFP module. For compatible SFP modules for different units as well as
compatibility between SFP modules, refer to SFP Module Selector Guide.
The second optical cable is optional, and is used in some radio configurations.
For detailed information on available radio configurations, refer to RBS Configurations.
5.3 Position D, −48 V DC Power Supply Interface
The -48 V DC power connection is made through a connector and can be either a 2-wire or a 3-wire connection. A DC power adapter shall be used with a 2-wire power supply. The connector accepts cables with various cross-sectional areas depending on the cable length and the AIR unit consumption.
The values can be found in Figure 17, and are calculated using the following formulas:
R=2*(0,02/A)
R = cable resistance per meter A = cable area (mm2)
L=4V/(R*i)
L = the maximum permitted distribution length R = calculated cable resistance
V = volt
i = current that the AIR active part radio unit uses at 38 V DC
Figure 17 Maximum Cable Lengths and Air Active Part Radio Unit Power Consumption (4V@38V)
The power cable conductor has a wire for both the 0 V conductor and a wire for the -48 V DC conductor. The colors of the wires are market-dependent.
All cables must be shielded. The shielding must be properly connected both to the power connector and to the grounding in the power supply equipment;
otherwise, the AIR unit over voltage and lightning protection does not function properly.
5.4 Position E, Optical Indicators
Optical indicators provided locally on the AIR unit show the status of the AIR unit. For more information on optical indicators, refer to Indicators, Buttons,
5.5 Position F, G, H, and I, J and K Interfaces for RF Cables (Optional)
The use of the passive antenna is optional.
Table 24 lists the AIR Unit Antenna Connection Interface Characteristics.
Table 24 AIR Unit Antenna Connection Interface Characteristics
Connector Type RF Cable Type Cable Connector Type 7/16 IEC-169-4
insert-type 50 Ω 1/2-inch coaxial 7/16 insert-type on both ends