R/C Manual

4. BUILDING A PROPER NETWORK

 

 

4. Building a Proper Network

4.1 STANDARD PARTS

Networks used for remotely controlling 1788A’s are built from standard Ethernet components such as Routers, Hubs and Switches. Standard CAT5/6 Ethernet cabling is used throughout.

4.2 NETWORKING SPEED

The network can run at 10 Base-T and 100 Base-T speed. We recommend using 100 Base-T hardware, especially when the number of preamps and controllers exceeds a few units.

4.3 DHCP SERVER

The Aphex 1788A network requires a Dynamic Host Configuration Protocol Server (DHCP Server). This is because IP addresses are not hardware assignable to individuals in the network constellation. Each IP address must be served up dynamically, on demand. This greatly simplifies the administration and flexibility of the network in certain ways.

The DHCP Server can be a hardware unit or a computer configured to be a DHCP Server. Hardware DHCP Servers usually take the form of a DSL Internet Router. These are inexpensive and reliable. You need not have an Internet connection. In fact, we highly recommend avoiding it. The Internet Port should just be left open.

Fig. 4-1. Typical DSL Router

(Containing DHCP Server)

 

 

 

1

2

3

4

5

6

7

8

Internet

 

 

 

 

 

 

 

 

 

 

 

 

Important Rules

1.Be sure your DHCP Server has ports 1198 and 1199 available and unlocked.

2.Only one DHCP Server can be allowed to exist on the LAN. If any additional Routers are attached to the LAN, they must have their DHCP Servers disabled.

4.4CAT 5/6 WIRING

A 1788A network likes to run clean. No error correction is used, although fault tolerance is built into the system. Anything less than Cat 5 cable is risking dropped commands. Standard commercial wire is suitable.

4.5 HUBS & SWITCHES

Unless your system is very small, you will need to gain more Ethernet ports than what came on your Router. Or, you may need to run one long network line from the Router to a remote rack of 1788A’s. In that case, we recommend incorporating Switches rather than Hubs to expand the network. Figure 2-5 shows some examples where Switches are shown to split out from the Router. Hubs, although cheaper, are not recommended. We have seen them jam up requiring a complete restart with as few as four 1788A’s.

4.6 SHARING EXISTING LANs

Usually, the Aphex preamps and controllers can share almost any conventional LAN with certain minimum requirements. First, there must be a DHCP Server on the LAN. Second,

Page 31

Page 30 Page 32
Page 31
Image 31
Aphex Systems 1788a Building a Proper Network, Standard Parts, Networking Speed, Dhcp Server, Hubs & Switches
Page 30 Page 32

1788a specifications

Aphex Systems 1788A is a high-performance microphone preamp and A/D converter known for its exceptional sound quality and versatility. This device is widely used in professional recording studios, broadcast facilities, and live sound applications, catering to a range of audio needs from vocals to instruments.

One of the key features of the 1788A is its ability to handle a wide variety of microphone types, including dynamic, condenser, and ribbon microphones. It provides a significant amount of gain, with a range of up to 70dB, allowing it to capture even the faintest of sounds without introducing noise. The flexibility of input options is enhanced by phantom power, which can be activated for condenser mics needing external power.

The Aphex 1788A also integrates advanced A/D conversion technology, providing high-resolution 24-bit audio with sample rates up to 192 kHz. This ensures that audio fidelity is maintained during the recording process. The unit features a dual-path A/D converter, which optimizes the signal for clarity and precision.

The device also incorporates Aphex’s innovative iEqualization processing, allowing users to enhance their recordings with EQ capabilities in real time. The iEqualization feature is particularly beneficial for adjusting the tonal characteristics of the source material, providing a more polished final product.

Another standout characteristic of the Aphex 1788A is its robust build quality. Designed for the rigors of professional use, the unit is housed in a rugged chassis that can withstand the demands of mobile and studio environments alike.

Transporting this device is made easier due to its rack-mountable design, fitting seamlessly into any standard 19-inch rack setup. Additionally, users appreciate the intuitive front-panel controls that facilitate easy adjustments and monitoring of levels.

In terms of connectivity, the 1788A offers multiple outputs, including analog XLR and digital outputs via AES/EBU and S/PDIF connections, making it highly compatible with various audio interfaces and recording systems.

Overall, the Aphex Systems 1788A is a powerful tool that combines exceptional preamp performance with high-quality A/D conversion, making it an ideal choice for audio professionals seeking reliability and superior sound quality in their recordings. Its comprehensive feature set ensures it meets the demands of both studio and live environments, solidifying its reputation as a trusted piece of audio equipment.
Top Page Image Contents