6
Chapter 1: Introduction
Back Modules
In a NEO frame, back modules are placed directly behind their respective front modules, facing the rear. Back modules are designated by the suffix “-BM.” For example, the back module of an XHD-3902-U front module is an “XHD-3902-BM.” Depending upon which front modules are used, the XHD-3902 back modules can be single-, double-, or triple-height.
XHD-3902-U,-C,-D, and -A Versions
Figure 1-2
shows the back module for a single embedded audio
XHD-3902 converter;
Figure 1-3
shows the back module for a single
AES/embedded audio XHD-3902-BC converter.
SDI OUT
SDI IN
1 1
GPI
8
RS-232
8
REF IN DARS IN SDI OUT SDI OUT
SDI
OUT/KEY
SDI
OUT/KEY
SDI IN 2
SECONDARY
SDI IN 1
PRIMARY
Figure 1-2. Back Module for XHD-3902-U, -C, -D, and -A with Embedded Audio
1
AES IN/OUT
1
AES
OUT 2
SDI OUT
AES
OUT 1
AES
IN 2
SDI IN
AES
IN 1
GPI
8
RS-232
8
REF IN DARS IN SDI OUT SDI OUT
SDI
OUT/KEY
SDI
OUT/KEY
SDI IN 2
SECONDARY
SDI IN 1
PRIMARY
Figure 1-3. “-BC” Back Module for XHD-3902-U, -C, -D, and -A with AES and Embedded
Audio
XHD-3902 Installation and Operation Manual
Chapter 1: Introduction
XHD-3902-M and -KF Versions
Back modules for the XHD-3902-M and XHD-3902-KF package are either double-height (for embedded audio) or triple-height for the AES/ embedded audio version.
Figure 1-4 and Figure 1-5
show the two versions, respectively.
CHANNEL A COMMON
SDI OUT SDI OUT
SDI
OUT/KEY
CHANNEL B
SDI
OUT/KEY
SDI IN 2
SECONDARY
SDI IN 1
PRIMARY
GPI
8
1
COMMON
REF IN DARS IN SDI OUT SDI OUT SDI
OUT/KEY
SDI
OUT/KEY
SDI IN 2
SECONDARY
Figure 1-4. Back Module for XHD-3902-M and XHD-3902-KF with Embedded Audio
CHANNEL A CHANNEL B
AES
OUT 2
AES
OUT 1
AES IN/OUT
AES
IN 2
AES
IN 1
AES
OUT 2
CHANNEL A
AES
OUT 1
AES
IN 2
AES
IN 1
COMMON
SDI OUT SDI OUT
SDI
OUT/KEY
CHANNEL B
SDI
OUT/KEY
SDI IN 2
SECONDARY
SDI IN 1
PRIMARY
GPI
8
1
COMMON
REF IN DARS IN SDI OUT SDI OUT SDI
OUT/KEY
SDI
OUT/KEY
SDI IN 2
SECONDARY
Figure 1-5. “-BC” Back Module for XHD-3902-M and XHD-3902-KF with AES and Embedded
Audio
XHD-3902 Installation and Operation Manual 7
Chapter 1: Introduction
Back Module Pinouts
This section includes pinout descriptions for the following connectors:
• AES In/Out (XHD-3902-BC modules)
• AES In/Out plug-in adapter (XHD-3902-BC modules)
• GPI
• RS-232 and RJ-45-to DB-9 adapter
AES In/Out Connector
Figure 1-6 shows the pinouts for the Balanced AES Audio In/Out
connector on the “-BC” versions of the XHD-3902-U, -C, -D, and -A
converters. Figure 1-7
shows a different pinout diagram for the “-BC” version of the XHD-3902-M converter. The AES In/Out plug-in adapters (included in the package) simplify integration with the
balanced DB-25 connector. See page 9 for details on the adapters.
1
AES IN/ OUT
1
GPI
8
RS- 232
8
REF IN
DARS IN
SDI
OUT
AES
OUT 2
SDI OUT
AES
OUT 1
AES
IN 2
SDI IN
AES
IN 1
SDI
OUT
SDI
OUT / KEY
SDI
OUT / KEY
SDI IN 2
SECONDARY
SDI IN 1
PRIMARY
AES 2 Out AES 1 In GND
13
25
NC
NC
NC
+
-
+
-
AES 1 Out
G
G
G
G
G
- +
G
G
- +
NC
NC
NC
NC
NC G
NC
14
1
AES 2 In
Figure 1-6. DB-25 Pinouts for the “-BC” Versions of the XHD-3902-U, -C, -D, and -A
8 XHD-3902 Installation and Operation Manual
Chapter 1: Introduction
CHANNEL A CHANNEL B
AES
OUT 2
AES
OUT 1
AES
IN 2
AES
IN 1
AES
OUT 2
CHANNEL A
AES
OUT 1
AES
IN 2
AES
IN 1
COMMON
13
25
Ch. A:
AES 2 Out
NC
NC
NC
+
-
+
-
Ch. A:
AES 1 Out
GPI
8
1
AES IN/OUT
COM MON
REF IN
SDI OUT SDI OUT SDI
OUT/KEY
CHANNEL B
SDI
OUT/KEY
SDI IN 2
SECONDARY
DARS IN SDI OUT SDI OUT SDI
OUT/KEY
SDI
OUT/KEY
SDI IN 2
SECONDARY
SDI IN 1
PRIMARY
Ch. B:
AES 1 Out
Ch. A:
AES 1 In
Ch. B:
AES 1 In
GND
G
+
-
+
-
Ch. B:
AES 2 Out
- +
G
G
- +
Ch. A:
AES 2 In
+
G
-
+
G
-
Ch. B:
AES 2 In
G
14
1
Figure 1-7. DB-25 Pinouts for the “-BC” Versions of the XHD-3902-M and XHD-3902-KF
AES In/Out Plug-in Adapter
XHD-3902-BC modules are shipped with a detachable plug-in adapter
(AIB-25-3901MF). This adapter provides terminals for connecting twisted pair audio cables directly to the back module.
Figure 1-8 on page 10
illustrates the pinouts and screw terminals for the plug-in
adapter of the XHD-3902-U, -C, -D, and -A versions. Figure 1-9 on page 11 shows the adapter for the XHD-3902-M and -KF versions.
NOTE
The AIB-25-3901MF is a universal adapter. Some terminals on this adapter are not used with the XHD-3902 back modules.
XHD-3902 Installation and Operation Manual 9
Chapter 1: Introduction
AES 2 output
AES 1 output
AES 2 out AES 1 out
G - + G - + G - +
AES 1 in
G + G + G + -
AES 1 input
AES 2 input
AES 2 in
G + G + G + -
AIB-25-3901MF
Figure 1-8. AES In/Out Adapter Connections (XHD-3902-U,-C,-D, and -A)
10 XHD-3902 Installation and Operation Manual
Ch. A: AES 2 out
Ch. A: AES 1 out
AES 2 out AES 1 out
G - + G - + G - +
Ch. A: AES 1 in
Ch. B: AES 1 out
Ch. B: AES 2 out
AES 1 in AES 3 out AES 4 out
G + G + G + -
Ch. A: AES 2 in
Ch. B: AES 1 in
Ch. B: AES 2 in
AES 2 in AES 3 in AES 4 in
G + G + G + -
AIB-25-3901 MF
Figure 1-9. AES In/Out Adapter Connections (XHD-3902-M and -KF)
Chapter 1: Introduction
XHD-3902 Installation and Operation Manual 11
Chapter 1: Introduction
GPI Connector
.
1
GPI 1
GPI 2
GPI 3
GND
GPI 4
GPI 5
GPI 6
GPI 7
8
Figure 1-10. GPI Connector Pinouts
RS-232 Serial Port Connector and Adapter
The XHD-3902 converters distribute closed caption data via a SMPTE
333M RJ-45 serial port. All XHD-3902 packages (except “-M” and
“-KF”) include an RJ-45-to-DB-9 adapter. The pinouts for both the
RJ-45 connector and the DB-9 adapter are shown in
Table 1-1 . A
standard CAT-5 Ethernet cable can be used to connect between the
RJ-45 socket on the XHD-3902 back module and the provided
RJ-45-to-DB-9 adapter.
Table 1-1. RS-232 RJ-45 and DB-9 Pinouts (EIA/TIA 574)
RJ-45 Pin
Number
7
8
5
6
3
4
1
2
RS-232
(SMPTE 333M)
NC
NC
NC
GND
RXD
TXD
NC
NC
RS-422
(future expandability)
NC
NC
NC
GND
RX+
TX-
RX-
TX+
DB-9 Adapter
Pin Number
8
7
2
3
4
5
9
1
Adapter Wire
Color
Blue
Orange
Black
Red
Green
Yellow
Brown
White
12 XHD-3902 Installation and Operation Manual
