NTP Technology Penta 721 digital I/O User manual

Installation Guide
Penta 721 digital I/O

2

GENERAL DESCRIPTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Rear panel layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Dual SFP optical I/O mini-module, 720-150. . . . . . . . . . . . . . . . . . . . 10
Terminal Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
ELECTRICAL SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
MECHANICAL DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
ENVIRONMENT SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Contents
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WARNING – when using electric products, basic precautions should be followed, including the following:
Read all of the safety and installations instructions and explanation of graphic symbols before using the
product.
DANGER
Improper connection of the equipment-grounding can result in a risk of electric shock. Do not modify the
plug provided with the product – if it will not fit the outlet have a proper outlet installed by a qualified elec-
trician. Do not use an adapter which defeats the function of the equipment-grounding conductor. If you are
in doubt as to whether the product is properly grounded, check with a qualified serviceman or electrician.
4
IMPORTANT SAFETY INSTRUCTIONS
READ AND KEEP THESE INSTRUCTIONS
1. Do not use this apparatus near water.
2. Clean only with dry cloth.
3. Do not block any ventilation openings. Install in
accordance with the manufacturer’s instruc-
tions.
4. Do not install near any heat sources such as
radiators, heat registers, stoves, or other appa-
ratus (including amplifiers) that produce heat.
5. Do not defeat the safety purpose of the polar-
ized or grounding-110 to 125V type plug ac-
cording to UL 817 and CSA C22.2 no. 42. A
polarized plug has two blades with one wider
than the other. A grounding type plug has two
blades and a third grounding prong. The wide
blade or the third prong are provided for your
safety. If the provided plug does not fit into your
outlet, consult an electrician for replacement of
the obsolete outlet.
6. Protect the power cord from being walked on
or pinched particularly at plugs, convenience
receptacles, and the point where they exit from
the apparatus.
7. Only use attachments/accessories specified by
the manufacturer.
8. Use only with the cart, stand, tripod, bracket,
or table specified by the manufacturer, or sold
with the apparatus. When a cart is used, use
caution when moving the cart/apparatus com-
bination to avoid injury from tip-over.
9. Unplug this apparatus during lightning storms
or when unused for long periods of time.
10. Refer all servicing to qualified service person-
nel. Servicing is required when the apparatus
has been damaged in any way, such as pow-
er-supply cord or plug is damaged, liquid has
been spilled or objects have fallen into the ap-
paratus, the apparatus has been exposed to
rain or moisture, does not operate normally, or
has been dropped.

The product must be grounded. If it should malfunction or breakdown, grounding provides a path of least
resistance for electric current to reduce the risk of electric shock. This product is equipped with a power
supply cord having an equipment-grounding conductor and a grounding plug. The plug must be plugged
into an appropriate outlet which is properly installed and grounded in accordance with all local codes and
ordinances.
WARNING
• Thisproduct,eitheraloneorincombinationwithanamplierandspeakersorheadphones,maybe
capable of producing sound levels that could cause permanent hearing loss. Do not operate at a high
volume level or at a level that is uncomfortable. If you experience any hearing loss or ringing in the ears,
you should consult an audiologist.
• Theproductshouldbelocatedsothatitslocationorpositiondoesnotinterferewithitsproperventila-
tion.
• Thepower-supplycordoftheproductshouldbeunpluggedfromtheoutletwhenleftunusedforalong
period of time. When unplugging the power supply, do not pull on the cord, but grasp it by the plug.
• Careshouldbetakensothatobjectsdonotfallandliquidsarenotspilledintotheenclosurethrough
openings.
SERVICE
• Donotattempttoservicetheproductbeyondthatdescribedintheusermaintenanceinstructions.All
other servicing should be referred to qualified service personnel.
• Theproductshouldbeservicedbyqualiedservicepersonnelwhen:
1. The power supply cord or plug has been damaged, or
2. Objects have fallen, or liquid has spilled into the product, or
3. The product has been exposed to rain, or
4. The product does not appear to be operating normally or exhibits a marked change in
performance, or
5. The product has been dropped, or the enclosure damaged.
WARNING – Hazardous moving parts. Keep fingers and other body parts away.
5

General description
The PENTA 721 Digital I/O is a 19” wide, 1RU high digital patch bay and interface unit for Digital Audio
signals compliant to the formats: AES3, MADI (AES10), IP audio based on Dante™, and DigiLink interface
compliant with Pro Tools™ | HD/HDX by the company Avid. PENTA 721 has a total of 8 AES3 I/O (16
mono) channels, two MADI BNC connectors for 64 channels of I/O, and optionally additionally one ST
optical connector or two SFP optical connectors for at total of three MADI I/O connectors providing 192 I/O
channels. The Dante IP audio technology is available on the two Ethernet connectors and provides 64 mono
channels of I/O which can be redundant on two connectors. The are two DigiLink primary ports, which each
has 32 channels of I/O for a total of 64 channels in and out to Pro Tools.
The digital patch bay of PENTA 721 is based on a digital router matrix with 400 input channels, which
individually can be patched to any one or more output channels. The matrix can operate on all standard
sample rates up-to 192 kHz and the matrix will interface data with the sample-rate to which the PENTA 721
is synchronized. The unit is based on synchronous routing so all digital signals must have the same basic
sample-rate. No sample rate functionality is available.
As standard the basic chassis is equipped with one power supply. Optionally two power supplies can be
installed.
All installation guides and more documentation can be downloaded from www.ntp.dk
6

Operation
The Penta 721 is operated via the Network port using the Penta manager control program, or via the NTP
Router Control System RCCore, when the unit is a part of an integrated routing system. On the front panel
there are LED indicators showing the status of the unit, and on the rear panel there is “reconfig” button by
which the unit can be set into certain pre configured modes.
Front panel LED’s
Penta 721 has 3 LED indicators on the front panel. The indicators are Ready, Error and PSU OK. The
function of the indicators are described below.
Reconfig button
The “reconfig” button is accessed via a hole in the rear panel using a pen or a similar pointed item. Trough
the hole a green LED is visible, which will light up indicating the various reconfig modes of the Penta 721
as a result of the activation of the “reconfig” button. When Penta 721 is in recovery mode the Ready Led
on the front panel of the unit will blink.
Recovery mode
Ready ON Green LED indicates that the unit is operative, and all
software is loaded and OK.
Ready BLINK Green LED blink indicates that the unit is in reconfig
mode
Error ON Red LED indicates a hardware error on the unit. This
could be an I/O card that is not working, a fan fault or
a PSU error. A detailed report will be in the alarm log of
the control software. In normal operation the LED is off.
PSU OK ON Green LED indicates that the power supplies are OK.
PSU OK BLINK Green LED blink indicates that one of the two power
supply is not OK or absent.
“reconfig”
push while
the unit is
powering up
Green LED
turns ON
reconfig”
short push
while the unit
is in reconfig
mode and
Green LED is on
Green LED
turns OFF
The Penta 721 enters a recovery mode. In this mode
only a basic boot code is operative in the unit, and new
code can be downloaded by the NTP download soft-
ware. This mode is used if the software on the platform
for some reason is not operative.
The IP address of the unit is the one currently used and
stored in the internal EERPOM
The Penta 721 remains in reconfig mode as described
above.
The IP address of the unit is however the default
address 10.0.7.20, and IP discovery is set to DHCP
which will change the IP address if a DHCP server is
available in the network
7
Net 1 Net 2 Reconfig
button
Green Led
Ready
Error
PSU OK

8
The selection of either of the two recovery modes are fixed after selection. The purpose of the recovery
mode is to download new firmware to the unit running only the fixed internal boot code in a simple default
configuration if download of firmware is not working in normal operating mode of the unit. By enabling
recovery mode with default IP address and network configuration the unit can always be identified on a
network via the default setup. Once download is completed the unit will enter normal operation. Alterna-
tively the unit has to be re-powered..
Note that the IP address referred to is the IP address of the controller/management interface of the
unit. This is not the IP address of the IP audio interface if a such is installed. This IP address can
not be managed locally on the unit.
Restore defaults
Penta manager software
For description of the Penta manager software please refer to the software user guide. Note that when the
Penta 721 is a part of an NTP router system, all management of the unit is handled by the control system.
Below is a screen dump of the basic/opening control window of the Penta manager software.
“reconfig”
long push 10
sec. while the
unit is in nor-
mal operation.
Release
“reconfig”
button
Green LED
OFF
The Penta 721 enters a restore default mode. In this
mode all setting of the unit is initialized to the factory
programmed defaults.
The IP address of the unit is the one currently used and
stored in the internal EERPOM
When the “reconfig” button is released the firmware
of the unit restarts with the factory default settings and
enter normal operation automatically.
Net 1 Net 2 Reconfig
button
Green Led

9
Rear panel layout
1. Mains inlet 1. The base unit is equipped with one power supply unit mounted with two redundant
power supplies. Each power supply is connected to its own power inlet. Both mains inlets must be
connected to either the same mains supply or to two individual supplies for fully redundant operation.
2. Mains ON/OFF switch or Mains inlet 2 if two power supplies are installed
3. Mini module slot
4. AES/EBU input and output. 25 pole D-sub female connector. AES/EBU I/O channel 1-4
5. AES/EBU input and output. 25 pole D-sub female connector. AES/EBU I/O channel 5-8
6. MADI input and output BNC connector, MADI I/O number 1
7. Dig Link interface port for Pro Tools HDX, Primary port
8. Dig Link interface port for Pro Tools HDX, Primary port or Secondary port (configurable)
9. Word Clock or Video Black Burst sync. input BNC connector (configurable)
10. Word Clock sync. output BNC connector
11. AES11/AES3 sync. input XLR female connector
12. Ethernet control and IP audio Primary port (net 1) RJ45 connector
13. Ethernet control and IP audio Secondary port (net 2) RJ45 connector
14. Reconfigure/initialize switch

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Dual SFP optical I/O mini-module, 720-150
Terminal Connections
The Dual SFP optical module, can be installed with one or two “Small
form-factor pluggable” (SFP) transceiver modules.
The SFP modules are standard types which support various types of
optical interfaces with LED or Laser diodes and various wave lengths.
Each SFP module has a receiver and a transmitter part, and can be
used for MADI audio I/O or the NTP Dual MADI format called “Hotlink”.
The right part of the SFP connector is the receiver and the left part is
the transmitter.
AES11 sync input XLR connector
Pin 1. TX. +
Pin 2. TX. –
Pin 3. RX. +
Optical I/O
SFP
Module
#1
SFP
Module
#2
113
1425
113
1425
AES/EBU I/O ch. 1-4
AES/EBU I/O ch. 5-8
1 2
3
Ethernet, RJ45 connector
Pin 1. TX. +
Pin 2. TX. –
Pin 3. RX. +
Pin 4, 5, 7, 8. NC
Pin 6. RX -

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AES/EBU input/output 25 pole D-sub connectors
Female connector for AES/EBU input and output connections
The top connector provides the connection for the first 4 AES/EBU input
and output channels. The lower connector provides the connection for
the last 4 AES/EBU input and output channels, providing a total of 8
AES/EBU I/O channels.
Below is listed the connection for the combined input and output 25
pole D-sub connector. The pinning is according to the proprietary stan-
dard by the company Tascam.
Connections channel 1-4 i.e. channel 5-8
Pin no Func. Pin no Func.
1 DOUT 4/8 + 14 DOUT 4/8 -
2 GND 15 DOUT 3/7 +
3 DOUT 3/7 - 16 GND
4 DOUT 2/6 + 17 DOUT 2/6 -
5 GND 18 DOUT 1/5 +
6 DOUT 1/5 - 19 GND
7 DIN 4/8 + 20 DIN 4/8 -
8 GND 21 DIN 3/7 +
9 DIN 3/7 - 22 GND
10 DIN 2/6 + 23 DIN 2/6 -
11 GND 24 DIN 1/5 +
12 DIN 1/5- 25 GND
13 N.C.
113
1425
113
1425
AES/EBU I/O ch. 1-4
AES/EBU I/O ch. 5-8
1 2
3

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Electrical specifications
Power consumption ........................... 52 VA max.
Input voltage................................. 90 – 260 VAC
100 – 240 VAC Nominal, 47 - 63 Hz
Mains fuse, mounted in IEC connector .............. 1 A, T1AH/250V
Safety compliance............................. EN 60950-1:2006
Power supply cord must be min. light sheathed flexible cord according to IEC60227 (designation 60227
IEC 52) and include a protective earth conductor having a green-and-yellow insulation. Cross-sectional
areas min. 3x0.75mm2”
Mains line plug type ........................... Correct type acc. to standard
110-125V .................................. UL817 and CSA C22.2 no 42
220-230V .................................. CEE 7 page VII, SR section 107-2-D1/IEC 83
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page C4.
240V ...................................... BS 1363 of 1984.Specification for 13A fused
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . plugs and switched and unswitched socket
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . outlets
Mechanical Dimensions
Chassis standard ............................. 19”, 1 RU
Chassis depth, without connectors mounted .......... 26,0 cm
Chassis body width ............................ 43,5 cm
Weight, not including optical modules . . . . . . . . . . . . . . 2 kg
Environment specifications
Operating Temperature ......................... 0 – 45 °C
EMC compliance.............................. EN 55103-1, part 1: emission
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EN 55103-2, part 2: Immunity
FCC 47 CFR part 15 (B): emission

13

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Installation Guide
Penta 721 digital I/O
November 2013
Doc no. 721-8001-A-5
www.ntp.dk
Layout:
www.rosenloeve.dk
Product features and specifications
are subject to change without notice.
All trademarks are recognised as the
property of the respective owners.

NTP Technology A/S · Nybrovej 99 · DK-2820 Gentofte · Denmark
Phone [phone] · Fax: [phone] · www.ntp.dk