Features:

VMIACC-5594

Automatically bypass connection nodes in fiber optic networks
Automatic regeneration of optical signals
Design of high-speed fiber optic reflective memory products for VMIC (VMIxxxx-5579 series)
Remote operation can be achieved through the control signal on the manual bypass connector on the front panel
Up to 64 switches per network (up to 256 nodes)
Can continuously bypass any number of nodes (manual or automatic; mixed in any order)

The General Electric Fanuc/VMIC VMIACC-5594 Fiber Optic Node Automatic Bypass Switch Hub Assembly is a 19 inch rack mounted enclosure designed to automatically bypass up to five nodes in a fiber optic reflective memory network without signal loss. These nodes represent any member of the MIxxxx-5579 reflective memory series. It aims to allow all running network storage to remain functional on the active network and automatically maintain the integrity of the entire network, regardless of the loss of one or more connected reflective storage nodes or their fiber optic signal transmission. Due to each VMIACC-5594 regenerating its fiber optic signal at each fiber optic connection, it does not cause measurable signal attenuation to the network, allowing for the operation of all 256 nodes allowed by VMIxxxx-5579. Continuous monitoring of signal integrity from each connected reflective memory node to detect loss of signal transmission capability. If any bypass condition occurs, the specific node is automatically bypassed until the bypass condition is corrected, at which point the subject node is automatically reconnected to the network.

The IDE hard drive is optional. Jumpers are used to configure any device as an IDE host or slave. This makes VMIVME-7459 flexible in applications as it can be used as a read-only optical module or a read-only hard disk module in conjunction with other storage modules of GE Fanuc. For example, fully populated VMIVME-7459 can be used with VMIVME-7452 modules that only have floppy disks.

VMIVME-7459 establishes a connection to the Single Board Computer (SBC) IDE interface through VME P2 user-defined pins. The type of SBC module and the physical layout of VME chassis determine the requirements for optional cables. For typical applications with single slot SBC, VMIVME-7459 is physically placed near the SBC. The connection between boards uses a dual slot VMXC-2 cable assembly, or a three slot VMXC-3 cable assembly to accommodate the floppy disk module. For applications with dual slot GE Fanuc SBC or installations where VMIVME-7459 is not located near SBC, it is recommended to use a 14 inch VMXC-H cable assembly.