GE VMIVME-5531L VMEbus fiber optic repeater link



GE VMIVME-5531L VMEbus fiber optic repeater link

Product Overview

VMIVME-5531L is a high-performance and easy-to-use VMEbus fiber optic repeater link that connects two or more VMEbus systems through fiber optic cables. The repeater link consists of a set of two boards, allowing the VMEbus slave I/O board located in one VMEbus chassis to be controlled by a VMEbus host located in another chassis. The VMEbus chassis containing the VMEbus host is called the host chassis, while the VMEbus slave board is located in the slave chassis.

Core functions and features

Key Features

Software transparency, direct communication from the host chassis to the slave chassis, without software overhead (one-way link control, two-way data transmission).

Plug and play operation, supports 8-bit, 16 bit, and 32-bit data transmission (6U slave), supports 16 bit, 24 bit, and 32-bit addressing (6U slave), supports 8-bit, 16 bit data, 16 bit, and 24 bit addresses (3U slave).

The VMEbus system is completely electrically isolated from each other, with fiber optic cables up to 6560 feet (2000 meters) in length.

Compared to standard repeaters, the advantages include compact cables, strong noise resistance, high voltage isolation, and no electromagnetic interference from cables.

A VME to VME link consists of two boards and two fiber optic cables (motherboard: 6U, slave board: 6U or 3U).

Features

Overview

The master VMEbus chassis can communicate with multiple slave chassis by using multiple relay links in a star configuration. Any VMEbus host in the host chassis can access (read or write) any slave board in the slave chassis, and only non interrupt slave boards are allowed in the slave chassis. When a VMEbus host (usually a CPU board) addresses any card in the slave chassis, the link between the host chassis and the slave chassis is automatically established. Whenever a host in the main chassis issues a VMEbus read/write cycle, it will be repeated to the slave chassis. If any slave board in the slave chassis responds to the address, data transfer (read or write) will occur between the chassis and a data transfer acknowledgement (DTACK) will be generated to the host (in the main chassis) to complete the cycle.

VMEbus compatibility

Compliant with VMEbus specification revised version C1, supporting A32, A24, A16, as well as D32, D16, D08 (EO). Among them, VMIVME-5531M is a DTB slave (used for the main chassis), and VMIVME-5531S is a DTB master (used for the sub chassis).

Appearance specifications

Dual height, single slot: 5531M, 5531S

Single height, single slot: 5531S

Repeat to the VMEbus signal from the chassis

6U: A1 to A31, D0 to D31, DS0 *, DS1 *, WHITE *, SYSRESET *, AM2, AM4, AM5, and LWORD*

3U slave: A1 to A23, D0 to D15, DS0 *, DS1 *, WRITE *, SYSRESET *, AM2, AM4, AM5, and LWORD*

Return the VMEbus signal to the host box

6U: D0 to D31, DTACK*

3U: D0 to D15, DTACK*

Other parameters

Address modifier: (09, 0D), 3, 29, 2D, 39, 3D

Read cycle overhead: maximum 4.0 μ s

Write cycle cost: maximum 4.0 μ s

Transmission rate (maximum) (10 foot cable length): Assuming the slave board in the chassis responds within 250ns, with a minimum of 1MB/s (D32) (applicable to 6U)

Cable specifications

Mode: Multi mode

Length: 5 to 6560 feet (1.5 to 2000 meters)

Fiber size: 62.5 microns

Package size: 125 microns

Buffer layer size: 900 microns

Maximum attenuation at 1300nm: 9.0dB (including connector)

Bandwidth at 1300nm: 500MHz km

Protective cover length: 20 to 60mm

U. L./NEC rating: OFNP

Connector style: ST, 2.5mm bayonet, both ends

Quantity required for each link: 2 (cables that meet this specification are provided with VMIVME-5531L. If you need to order cables separately, please refer to specification number VMICBL-000-F3-xxx)

Physical/Environmental Specifications

Size: Dual height (6U) board 160 × 233.35mm, single height (3U) board 160 × 100.0mm (for slave only)

Power requirements: VMIVME-5531S and VMIVME-5531M are both typical 2A at 5VDC, with a maximum of 3.0A

Temperature: Operating temperature 0 to+65 ° C, storage temperature -20 to+85 ° C

Altitude: 0-10000 feet (3000m) during operation

Humidity: Relative humidity during operation is 20% to 80%, with no condensation

Cooling: forced air convection

Mean Time Between Failures (MTBF): 424895 hours, 431525 hours

Ordering Options

In VMIVME-5531L, A represents the slave specifications (0=6U slave, 1=3U slave), BC=00 represents unused, and D, E, F represent cable length and other information.

Only the VMIVME-5531M and VMIVMME-5531S cards have corresponding ordering options.

The link includes one VMIVME-5531M board, one VMIVME-5531S board, and two cable assemblies.

Connector data

Compatible connector: ST connector

Fiber optic receiver: HFBR-2416 (HP)

Fiber optic transmitter: HFBR-1414 (HP)

Printed circuit board fiber optic connector