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Manual-1

OPERATORS MANUAL NM 48

NETWORK PREAMPLIFIER

WEAR PARTS: This product contains no wear parts.

CobraNet is a trademark of Peak Audio, Inc.

Quick Start

Ok, if you’ve read the NM 84 manual you might get a sense of déjà vu when you read this one. Maybe not quite as

strong as if you were watching another Adam Sandler movie, but déjà vu just the same. The reason for the similarity is that

the complicated stuff (network design) is such a large part of the installation. This is basically the same for both units.

First, design the network – a dedicated network for CobraNet audio is recommended, but not required when using

switch-based networks. The NM 48’s CobraNet technology utilizes standard 100Base-T Ethernet hardware. For CobraNet

and network design assistance and a list of other CobraNet licensed and tested devices, visit www.peakaudio.com/cobranet.

Rear Panel. Connect up to 4 line-level, analog audio inputs to the XLR INPUTS. Each of the eight OUTPUTS can

independently receive any of the 4 Local Input audio channels or any single Audio Channel from one of four CobraNet

Bundles from 1 through 999, plus off/none. Connect the network cable to the 100Base-T RJ-45 jack. The RS-232 jack

transports RS-232 data over the network to other NM, RS-232 device ports. The RS-232 port does not provide control of the

NM 48. Connect contact closures to the MEMORY RECALL PORT (MRP) to recall Memories on this device or any

other NM device(s) connected on the same network. Connect the locking 5-pin DIN jack on the enclosed RS 3 power supply

to the NM 48 POWER connector. The RS 3 power supply does indeed connect earth ground – the 3

pin of the AC line

cord – to the NM 48 chassis metal. Depressing the recessed FP LOCK (Front Panel Lock) button at this point disallows

further front panel setup, so only press this button in once you’re completely done setting up the NM 48.

Front Panel. There are 14 LCD screens allowing access to all NM 48 parameters. The first eight LCD screens set up the

Outputs; Output 1: through Output 8:, respectively. Each of the 8 Outputs can receive any of the local Input channels or

any CobraNet Audio Channel from one of four Bundles. Use the Copy field to copy and paste between the various screens.

The next screen allows the Inputs; Input 1: through Input 4:, to be turned On or Muted.

The NetRx: LCD edit page sets up the four possible CobraNet Bundles (Bndl) that the NM 48 can receive from the

network; use NetRx’s Bndl A, Bndl B, Bndl C and Bndl D fields to set the received Bundle(s).

The four NM 48 Input audio channels can be transmitted on up to 4 different CobraNet Bundles. Each of the 4 Bundles

contains all four Input audio channels and are transmitted in 24-bit resolution. CobraNet designates each of the four, Audio

Channels (i.e., AudCh 1 through AudCh 4, respectively). The Network Transmit LCD screen (NetTx) allows selection of

the four Bundles to transmit, each of which are independently assignable to one of the 999 Bundles using the four NetTx

fields; Bndl A, Bndl B, Bndl C and Bndl D.

The Mem (Memory) LCD screen allows 16 unique NM 48 setups to be stored and recalled in the 16 memory locations.

Additionally, the NM 48’s MRP status can be transmitted over the network for other NM devices to “listen to.” Set the

MRP Tx (MRP Transmit) and MRP Rx (MRP Receive) fields for any or none of the 16 available MRP channels. The Serial:

LCD screen sets the RS-232 serial port’s Baud rate and the 232 Tx and 232 Rx fields which set the transmit and receive

RS-232 channels. There are 255 serial data channels available for transport over the network.

The final Config: LCD screen displays the current/editable IP Address and the editable Name of the NM 48 device (8

characters max). Set the IP address to 0.0.0.0 (the default) to enable CobraNet’s Discovery Utility (Disco) to dynamically

assign the IP address. Peak Audio’s Discovery Utility allows you to plug into a CobraNet network with a standard Ethernet

computer card (NIC) and discover all of the CobraNet devices on the network. The Disco software utility has the ability to

dynamically assign IP addresses as well as update CobraNet firmware on the discovered CobraNet devices. Disco is

available from www.peakaudio.com/cobranet as well as many music retailers which carry The Village People, KC & the

Sunshine Band, Wild Cherry and the like.

Do yourself a favor and at least read the Important Big Picture Concepts section found elsewhere in this manual.

Reviewing the Network Examples provides insight into a logical order for design work and would also be a way to avoid

initial confusion.

1 2 3 4 5 6 ... 15 16

Inhaltsverzeichnis

Seite 1 - OPERATORS MANUAL NM 48

Manual-1OPERATORS MANUAL NM 48NETWORK PREAMPLIFIERWEAR PARTS: This product contains no wear parts.CobraNet is a trademark of Peak Audio, Inc.Quick St

Seite 2 - Front Panel Description

Manual-10Mbit Ethernet, that link will easily saturate. In any case, it isnot CobraNet which suffers under these conditions, it is thecomputers.The fi

Seite 3 - Rear Panel Description

Manual-11For the LCR and stereo FM broadcast feeds, you could usehard-wired cable runs which may be less expensive. Or, use asingle CAT 5 cable, three

Seite 4 - Line Mode

Manual-12(hidden or password-protected web pages) can then be createdto provide any level of system parameter access desirable—from complete system co

Seite 5 - Manual-5

Manual-13Computer IP SetupIf you’re using a computer with the NM 48, it must be setfor network operation to allow it to speak using TCP/IPprotocol. (T

Seite 6 - Manual-6

Manual-14Conductor – The CobraNet device on the network whichsupplies the master clock. A conductor arbitration proce-dure insures that at any time th

Seite 7 - Manual-7

Manual-15Memory Recall PortThe MEMORY RECALL PORT (MRP) provides contactclosure control to recall any of the 16 Memories. Eight of theMemories are rec

Seite 8 - A Few Words About Networks

Manual-16©Rane Corporation 10802 47th Ave. W., Mukilteo WA 98275-5098 TEL (425)355-6000 FAX (425)347-7757 WEB http://www.rane.com105254Control Na

Seite 9 - Network Examples

Manual-2Front Panel Description Output Meters should be self explanatory. They are peak meters. The only quirk to these meters is the Mute conditionw

Seite 10 - Manual-10

Manual-3Rear Panel Description Chassis ground screw. A #6-32 screw is supplied for chassis grounding purposes. The NM 48 does connect the 3rd pin oft

Seite 11 - Software and Applications

Manual-4NM 48 LCD Edit PagesEach Edit page’s name appears in the upper left corner ofthe LCD display. Fourteen (14) pages are included, free ofcharge:

Seite 12 - Manual-12

Manual-5Memory Edit pageThe Memory Edit page stores and recalls the NM 48Memories. Memory Recall Port Transmit (MRP Tx) and MRPReceive (MRP Rx) are al

Seite 13 - Glossary of Terms

Manual-6Serial Edit pageThe Serial Edit page configures the RS-232 port. TheBaud parameter must be set to the desired baud rate for thedevice used wit

Seite 14 - Manual-14

Manual-7Important Big Picture ConceptsThere are several imperative concepts which must beknown to effectively understand the NM 48 and its CobraNettec

Seite 15 - Memory Recall Port

Manual-8not simple, “Networking 101” devices – they’re more like thePh.D. candidates of the network world.The fourth network hardware device to introd

Seite 16 - Manual-16

Manual-9Network ExamplesThere are two ways to transmit CobraNet audio across anetwork. An example for each transmission method follows.The application

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Rane NM 48 Bedienungsanleitung

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