User manual

© 2006 Wohler Technologies Inc. ALL rights reserved
15
AMP-S8 Series+ User Manual P/N 821640 Rev-B
Q
P
AES Unbalanced Output (From SDI Input) Connector (Standard SDA, HDA, and MDA)
AES signals de-embedded from the selected SDI Input, IN1 or IN2 (Item E, page 10) are output from this female
HD-15 connector, which is configured for unbalanced 75
ΩΩ
ΩΩ
Ω impedance connections. See the table and diagram
below for pinout information. See Item O for instructions on how to replace this standard unbalanced connector with
the optional integrated DB-25 balanced connector.
AES Balanced Output (From SDI Input) Connector (Option SDA, HDA, and MDA)
AES signals de-embedded from the selected SDI Input, IN1 or IN2 (Item E, page 10) can be output from this DB-25
connector, which is configured for balanced connections (110
ΩΩ
ΩΩ
Ω impedance). When installed, this balanced DB-25
connector replaces the unbalanced HD-15 connector in Item N. Pinout information for the balanced DB-25 connector is
shown below.
N/C
13
N/C
G = Ground
- = Cold
+ = Hot
2325
24
1112
22 21
8910
N/CN/C N/C
15
+
5
20 19 18
67
17
16
3
4
G
1
G
-
+
32
G
--
+
14
12
4
G
-
+
SDI Channels
AES Output of
1 = CH-1/2
2 = CH-3/4
3 = CH-5/6
4 = CH-7/8
Rear Panel Features
Section 2: Operation
O
N
Installing the Optional DB-25 Balanced Connector:
The female DB-25 balanced output option may be installed by qualified service personel without need for additional
parts as follows:
1) Remove power from the unit.
2) Remove the top cover from the chassis of the AMP-S8 Series+ unit (set the screws aside for later
reassembly).
3) The standard unbalanced HD-15 connector is attached to the rear panel by a plate. Under this connector and
plate is the cutout for the optional DB-25 connector. Inside the unit, the HD-15 connector (Item N) is
connected to an output PCB module (919224). Unplug the female DB-25 connector (Item O) from the other
end of this module. Note that the DB-25 connector terminates an internal ribbon cable.
4) Remove and set aside the two screws, nuts, and washers from the HD-15 connector plate attached to the rear
panel and remove the connector/plate/module assembly from the unit.
5) Use the two screws, nuts, and washers removed from the disassembled HD-15 connector plate to install the
DB-25 connector into the larger connector cutout now revealed.
6) Reassemble the top cover to the chassis.
NOTES:
• The DB-25 balanced option may be specified at time of order and the conversion performed at the factory.
• Once conversion to a balanced DB-25 connector is done (following steps 1-6 above), a special dongle is
available which may be plugged into the DB-25 connector to easily convert it (back) to an unbalanced HD-15
connector. Contact Wohler Technologies for more information on this dongle.
RS232A Input/Output Connector
This DB-9 connector is used for downloading programming, setup, and diagnostic information into and out of the unit.
Remote Connector (Option for 2U Models only)
This option is available only on the 2U rack AMP2-S8 models. This connector is not installed in standard 2U models
and is available for installation with a retrofit kit, or as an option when ordering. When installed, it allows remote control
over input source selection or other other aspects of the system as may be specified in a special order. Contact
Wohler sales for special order inquiries (email: [e-mail]).