Network & Communication
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Black Box RS-232 to RS-422 Converter - 1 x DB-25 RS-232 , 1 x RS-422 Terminal Block - External
- Transmits data up to 4000 feet (1219.2 m).
- Full-duplex operation over 4-wire lines.
- Async (data leads) only.
Our popular RS-232 to RS-422 Converter provides reliable conversion at speeds up to 64 kbps. You can transmit data up to 4000 feet (1219.2 m) on the RS-422/485 interface - over 4-wire lines in full-duplex operation.
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In RS-485 mode, select either RTS or DTR to enable the driver. Or set the driver so that it's always enabled.
The converter features DIP switches instead of DIP shunts for easy setup. It's intended for use with data signals, so if you need a converter that supports handshake and clocking leads, our techs recommend one of the RS-232 to RS-422/RS-449 Converters (IC456A-R5, IC456C-R5) in Related Items.$293.01 -
Black Box 28 PT 10Gb Network Switch - 10-Gigabit Ethernet Network Switch, 28-Port
Emerald is the first Enterprise KVM Extension and KVM Matrix Switching solution that delivers pixel-perfect video with 2K/HD or 4K/60 resolutions at 10 Bit color depth over an IP network.
The flexible and scalable system supports any number of workstations and servers. In addition, it simplifies virtual access, making it easy for you to use any combination of physical and virtual servers.
It provides operators and administrators with fast and easy-to-use access to their target PCs/servers with premium video quality and a rich peripheral set supporting stereo audio and up to any four true emulated USB 2.0 devices including Wacom® tablets. Administrators will like comprehensive management with convenient configuration options in line with high-level network security and reliable 24/7 operation.
An Emerald KVM network may start small, but it's infinitely scalable to meet your expansion needs and future technology path just by adding endpoints, with no additional chassis or cards required.
System by Design
Emerald comprises of a choice of transmitters connecting computers or virtual machines to the system and receivers connecting the user consoles. High-performance Emerald network switches with 12, 28,- 32-, or 48 ports ensure trouble-free KVM over IP extension and matrix switching connections. A range of SFP/SFP+ transceivers proofs best performing video quality and KVM extensions over the required distances.
Use the Emerald transmitter to connect DisplayPort servers with resolutions up to 4K60, transparent USB, serial, and audio to your Emerald System.
Instant access across the entire enterprise
Emerald makes your migration painless, enabling you to scale access infinitely and gradually across buildings, campuses, and the wide-area network, using your existing network infrastructure - with switching between sources at speeds of less than half a second.
Digital video at its best
Emerald is the first KVM platform that supports pixel perfect 4K DisplayPort video at 60 Hz over standard IP network switches. Image transmission with mathematical lossless compression visualizes every single pixel at 60 fps with 10-bit color depth.
If you're not ready for 4K, start with the Emerald 2K options, supporting one or two full HD DVI channels, and migrate to 4K at your own pace by transitioning individual user groups when the need arises.
Virtualization
More and more physical servers are being replaced by virtualization, allowing better performance, availability, scalability, and return on investment. Emerald simplifies access to both physical and virtual servers with virtual machine support for VMware, Microsoft, and Citrix, using RDP 8.1, RemoteFX, and PCoIP, among others.
Fail-safe operation
All Emerald transmitters and receivers feature copper or fiber connectivity through one (HD) or two (4K) flexible SFP+ slots.
Your 24/7 operation requires network resilience. Use the redundant network ports on the Emerald units to provide continuous, uninterrupted operation even if one network link experiences loss-of-service. Connect the endpoints either through two alternative direct links, a direct link, and a network connection or two independent networks.
Learn More$11,729.26 -
Black Box RS-232 to RS-485 Interface Converter - 1 x DB-9 RS-232 , 1 x RS-485 Terminal Block - Internal
- Operates in half-duplex over two wires.
- Works with or without transmit "echo."
- The converter's RS-232 side has a DB9 female connector configured as DCE.
- The converter's RS-485 side has a terminal block.
- Also available in four other configurations. See Similar Products.
The Async RS-232 to RS-485 Interface Bidirectional Converter, DB9 Female to Terminal Block features a DB9 female connector on the RS-232 side, and a terminal block on the RS-485 side. It converts your unbalanced RS-232 signals to balanced half-duplex RS-485 signals. Learn More$131.83 -
Black Box Async RS232 to RS422/485 Interface Converter - DB9 to Terminal Block - 1 x DB-9 RS-232 , 1 x Terminal Block - External
- Enables you to select RS-485 2-wire half-duplex or RS-485 4-wire full-duplex operation.
- Selectable RS-422 operation with transmit and receive always enabled.
- Automatic RS-485 driver control, so it works without any special programming for handshaking signals. Also enables transmitter from RS-232 TD signal and receiver when not transmitting.
- Built-in bridging switches for 2- or 4-wire operation with no external jumpers to set.
- Set operating mode with four switches.
- Converts using either port power or power from an external 120-VAC/12-VDC power supply (sold separately).
- No external power is required if two RS-232 output handshake lines are available.
$121.49 -
Black Box Gigabit Ethernet Network Switch, 48-Port - 48 Computer(s) - 50 Hz, 60 Hz - 48 x Network (RJ-45) - 1 x USB - Management Port - 1U - Rack-mountable
An Emerald KVM network may start small, but it's infinitely scalable to meet your expansion needs and future technology path just by adding endpoints, with no additional chassis or cards required.
System by Design
Emerald comprises of a choice of transmitters connecting computers or virtual machines to the system and receivers connecting the user consoles. High-performance Emerald network switches with 12, 28,- 32-, or 48 ports ensure trouble-free KVM over IP extension and matrix switching connections. A range of SFP/SFP+ transceivers proofs best performing video quality and KVM extensions over the required distances.
Use the Emerald transmitter to connect DisplayPort servers with resolutions up to 4K60, transparent USB, serial, and audio to your Emerald System.
Instant access across the entire enterprise
Emerald makes your migration painless, enabling you to scale access infinitely and gradually across buildings, campuses, and the wide-area network, using your existing network infrastructure - with switching between sources at speeds of less than half a second.
Digital video at its best
Emerald is the first KVM platform that supports pixel-perfect 4K DisplayPort video at 60 Hz over standard IP network switches. Image transmission with mathematical lossless compression visualizes every single pixel at 60 fps with 10-bit color depth.
If you're not ready for 4K, start with the Emerald 2K options, supporting one or two full HD DVI channels, and migrate to 4K at your own pace by transitioning individual user groups when the need arises.
Virtualization
More and more physical servers are being replaced by virtualization, allowing better performance, availability, scalability, and return on investment. Emerald simplifies access to both physical and virtual servers with virtual machine support for VMware, Microsoft, and Citrix, using RDP 8.1, RemoteFX, and PCoIP, among others.
Fail-safe operation
All Emerald transmitters and receivers feature copper or fiber connectivity through one (HD) or two (4K) flexible SFP+ slots.
Your 24/7 operation requires network resilience. Use the redundant network ports on the Emerald units to provide continuous, uninterrupted operation even if one network link experiences loss-of-service. Connect the endpoints either through two alternative direct links, a direct link, and a network connection or two independent networks.
Network Requirements
For HD video, Emerald requires a standard Gigabit Ethernet network and possibly a 10 Gigabit aggregate switch, depending on how many endpoints you have. For 4K video, you'll need a standard 10 Gigabit Ethernet network with a 100 Gigabit aggregate switch for 20+ endpoints. For both, the network infrastructure required by Emerald can be built with IEEE 802.3 standards-based components from Black Box or other manufacturers.
Management
Emerald supports two ways to manage the system: locally via the receiver's OSD or the Boxilla central KVM manager. Emerald in combination with Boxilla enables timesaving, controllable presets, and multi-user settings. Monitor network usage, define user access rights, and set up automated intrusion alerts. You can also pool designated CPU resources, allowing for user selection by type of server/PC/desktop rather than by individual dedicated resource. Even more important, you can prepare for instantaneous recovery from disasters with one-click access to an entire backup control room in a different location. The KVM main control room configuration can be replicated anywhere you have a network connection.
Learn More$5,607.33 -
Black Box Async RS232 to RS422/485 Interface Converter - DB9 to Terminal Block - 1 x DB-9 RS-232 , 1 x Terminal Block - External
The BLACK BOX® Universal RS-232 to RS-422/485 Converter with Opto-Isolation isolates and converts RS-232 signals into RS-422/RS-485 signals and vice versa. Unlike other converters, external software is not required to control data flow. The RS-232 input is wired for DCE through a DB9 female connector, and RS-422/RS-485 signals are interfaced through a removable terminal block. To supply external power to the terminal block, you need our 120-VAC/12-VDC Wallmount Power Supply (PS1003).
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For RS-232, the connection requires RD, TD, and Signal Ground.
In RS-422 mode, the driver is always enabled for full-duplex communications. A twisted pair is required for transmit, and a twisted pair is also required to receive. A ground reference wire is also needed. Switch settings are Switch 1: RS-422; Switch 2: Echo On; Switches 3 and 4: 4 Wire.
In both RS-485 modes, the RS-485 driver is automatically enabled during each space state by the presence of an RS-232 signal. When the RS-232 data is in a mark or idle state, the RS-485 driver is disabled and the RS-485 data lines are held in a mark state by the bias provided by a 4.7-ohm resistor; the value of this resistor may need to be changed, depending on the termination you use.
To connect to several RS-485 devices with minimal wire, select the unit's 2-wire, half-duplex RS-485 mode. When data is requested, the addressed device transmits and then reverts back to receive status. Switch settings for this mode are Switch 1: RS-485; Switch 2: Echo Off; Switches 3 and 4: 2 Wire.
For 4-wire master/slave circuits, select the unit's 4-wire, full-duplex RS-485 mode. In this mode, addressed devices can receive data while transmitting data from a previous request. When used as a master in a single-master system, Switch 1 may be selected because the unit is the only transmitter in the system. When used as an RS-485 slave, the RS-232 device must provide addressability. Biasing in a master/slave system is provided by the end-of-line slave. Switch settings for this mode are Switch 1: RS-485; Switch 2: Echo On; Switches 3 and 4: 4 Wire.$152.14










