As you touch the letter/number keys, what you have entered appears above the keyboard in a mini-screen with a centered cursor.

The SHIFT key lets you shift back and forth from upper case to lower case.

Touching the SPACE key advances the cursor one space.

Touching the BACK key sends the cursor back one space.

The CLEAR key clears whatever you have entered on the mini-screen.

The ENTER key enters whatever appears in the mini-screen in the STORE/RECALL screen, as the name of the program where you touched Sto.

The CANCEL key does not change anything on the screen, but returns you to the STORE/RECALL screen.

To run the program you have just entered, touch RETURN to go back to the SETTINGS screen. Review the settings, touch RETURN to go back to the CURRENT SETTINGS screen, touch START/SCRN to go to the STATUS screen, and then touch RUN.

5.52 Recalling a program

In the STORE/RECALL screen, touch Rcl next to the preset program you want to recall. Touch RETURN to see the settings for that program displayed in the SETTINGS screen.

To run the recalled program, touch RETURN to go to the CURRENT SETTINGS screen. Touch START/SCRN to go to the STATUS screen, and then touch RUN.

SECTION 6.0: PRACTICAL OPERATION

6.1 Adding Liquid Nitrogen Coolant.

Liquid nitrogen is added to the 6870 Freezer/Mill with the lid open. There is a fill mark 1-3/4 inches (4.5 cm) below the lip of the tub. If the liquid nitrogen is above this mark when the lid is closed, LN can splash outside the tub. Always close the lid slowly to avoid splashing.

Liquid nitrogen will most likely to be available either in a large tank with a flexible steel hose, or in smaller Dewar flasks. The 6870 Freezer/Mill typically consumes 5 to 8 liters of LN during initial cool-down, and another 2 to 5 liters per hour, depending on use.

Unlatch the lid and the gas cylinders will push it open. To unlock the latch, press down on the lid and pull the top of the latch toward you and down. Disengage the bottom of the latch and the lid can be opened. The coil mechanism is attached to the lid and will rise with it. The coil gate is on the right side of the coil housing. To lower the coil gate to insert a loaded vial or vials for grinding, align the coil gate handle with the slot in the coil gate, and pull the coil gate to the right.

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Allied Telesis 6870 manual Recalling a program, Practical Operation, Adding Liquid Nitrogen Coolant
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6870 specifications

The Allied Telesis 6870 is a robust Layer 3 Ethernet switch designed for high-performance networking in enterprise environments. Incorporating advanced features and technologies, it serves as a vital component in managing complex network infrastructures, ensuring seamless connectivity, reliability, and enhanced performance.

One of the standout characteristics of the 6870 is its support for a high number of Gigabit Ethernet ports. With multiple SFP and SFP+ ports, the switch allows for flexibility in connecting various devices, while also facilitating the use of different physical media. This capability is crucial for organizations that demand versatile connection options, particularly when managing diverse networking equipment.

The switch is equipped with advanced Layer 3 routing capabilities, allowing it to perform IP routing functions in addition to standard Ethernet switching. Suitable for traffic management, the switch supports protocols such as OSPF, RIP, and static routing, enabling efficient and intelligent path selection in larger networks. This functionality is essential for optimizing bandwidth usage and maintaining an efficient data flow throughout the network.

Another highlight of the Allied Telesis 6870 is its support for VLANs (Virtual Local Area Networks). VLANs enable network segmentation, improving security and performance by isolating different segments of traffic. This capability is further enhanced by the switch's support for advanced features like Ingress/Egress Rate Limiting and Quality of Service (QoS). These features allow network administrators to prioritize critical applications and ensure that bandwidth is allocated effectively.

The switch also incorporates the innovative Allied Telesis Autonomous Management Framework (AMF), which simplifies device management and network configuration. With AMF, administrators can manage multiple switches as a single logical entity, reducing operational complexity and minimizing downtime. This technology supports zero-touch provisioning, enabling rapid deployment and configuration of network devices.

Security is another key aspect of the 6870, with features such as Access Control Lists (ACLs) and IEEE 802.1X port-based authentication. These measures help protect the network from unauthorized access and ensure that only authenticated devices can connect to the network.

In summary, the Allied Telesis 6870 is a versatile and powerful switch that meets the demands of modern enterprise networks. With its comprehensive feature set, including high-performance routing, VLAN support, and advanced management capabilities, it offers a reliable solution for organizations seeking to optimize their network infrastructure. Whether for deploying new services or managing existing traffic, the 6870 stands out as a formidable choice for network administrators.
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