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Figure 19. Unidirectional MIMO (Baseband and IF) TX Chassis
PWR OK/
USER1
GPIB
DRIVE
FAULT
USER2
10/100
/1000
1
ACT/
LINK
10/100
/1000
2
ACT/
LINK
TRIG
RESET
Embedded Controller
1. Mini-SAS HD(m)-to-Mini-SAS HD(m) (8.25 in.) Cables
2. MMPX(m)-to-MMPX(m) Cables
8.
Repeat steps 1 through 6 for the second set of chassis.
Related Information
Connecting mmRH-3642/3643/3652/3653 Radio Heads to a Unidirectional System
39
Connecting mmRH-3647/3657 Radio Heads to a Unidirectional System
Configuring the Coding Modules of a MIMO System
Bidirectional System Setup
This section describes how to connect the modules of a bidirectional mmWave Transceiver
System.
Bidirectional mmWave Transceiver System configurations are as follows:
•
Bidirectional SISO (baseband)
•
Bidirectional SISO (baseband and IF)
•
Bidirectional MIMO (baseband)
•
Bidirectional MIMO (baseband and IF)
Each configuration consists of two RX/TX chassis with identical module configurations.
Interconnecting the Bidirectional SISO (Baseband) Modules
Complete the following steps to connect the modules of the bidirectional SISO (baseband)
mmWave Transceiver System configuration.
1.
Connect the adjoining PXIe-7902 and PXIe-3610 modules using four Mini-SAS HD(m)-
to-Mini-SAS HD(m) (8.25 in.) cables.
a)
Connect the PORT 0 connector of the PXIe-7902 front panel to the 0 connector of
the PXIe-3610 front panel.
PXIe-3610
PXIe-7902
I/Q Generator
IF-LO Module, 2 GHz BW
TX
ACCESS
ACTIVE
CLK
IN
LO1
IN
0
LO1
OUT
1
IF OUT
2
3
IF SYNC OUT
I+
I+
REF
2 Vp-p
DIFF MAX
I–
OUT
I–
+10 dBm
0 V cm
NOM
Q+
REF IN
Q+
2 Vp-p
DIFF MAX
Q–
+13 dBm
Q–
MAX
ALL PORTS 50 Ω
ESD
SENSITIVE
2
3
4
5
6
1
mmWave Transceiver System Getting Started Guide | © National Instruments | 27
24 GB/s
NI PXIe-3620
mmWave
RX
LO1
IN
LO1
OUT
1
LO1
LO1
IF IN
DIGITAL I/O
LVTTL
IF SYNC IN
REF IN
I+
REF OUT
I–
2
Q+
LO2 IN
LO2 OUT
Q–
7
8
9
10
11
on page 50
NI PXIe-1085
10 MHz REF
OUT
IN
PXIe-3610
PXIe-7902
NI PXIe-3620
I/Q Generator
IF-LO Module, 2 GHz BW
TX
mmWave
RX
ACCESS
ACTIVE
CLK
IN
LO1
LO1
IN
IN
0
LO1
LO1
OUT
OUT
1
LO1
LO1
IF OUT
IF IN
2
3
DIGITAL I/O
LVTTL
IF SYNC OUT
IF SYNC IN
I+
REF IN
I+
I+
REF
2 Vp-p
DIFF MAX
I–
OUT
I–
REF OUT
I–
+10 dBm
0 V cm
NOM
Q+
Q+
REF IN
LO2 IN
Q+
2 Vp-p
DIFF MAX
Q–
+13 dBm
LO2 OUT
Q–
Q–
MAX
ALL PORTS 50 Ω
ESD
SENSITIVE
12
13
14
15
16
17
on page 42
18
on page
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