black box SM277A-MM-SC-LCH
型号：SM277A-MM-SC-LCH

产品描述：Pro Switching System, 2U, A/B Switch Card, Multimode Fiber Optic, SC, Latching   

Product Highlights
Use with the Pro Switching System, 2U (SM260A).
Occupies one slot.
Many types of switch ca* are *ailable. See Ordering instructi* (below).


Further Details
Pick a card, any card.
A/B Switch Ca* are *ailable for RS-232, video, fiber optic, and CAT5e/CAT6 connecti*. The card featured here is the Multimode Fiber Optic, SC, Latching. Use the system for both new and legacy applicati*. You can add ca* for fast CAT6 10-GbE networking while keeping connecti* for older RS-232 and 75-ohm video connecti*.

Secure and fallback switching.
For fail-safe operation, all the ca* (except those noted) use proprietary latching or micro-mirror relay switching technology—which means data can continue to pass through even if the power has been cut off. Because the ca* perform Layer 1 switching, the system operates independently of data rates, protocols, formats, or signal levels.

The non-latching fiber ca* fall back to a Port C (chassis) to Port A connection when the power fails. When power is restored, the non-latching switch card reconnects Port C to the originally selected port (A or B). These types of ca* are typical when you want a fallback or failover connection during power outages.

Each chassis also has a keyed switch so you can enable/disable manual switching from the front-panel to*le switches.


Ordering instructi*

First, order the chassis...
Pro Switching System, 2U, 18-Card (SM260A)

Next order at least one power supply (order two for redundant power)...
Power Supply, 120–240 VAC, External (SM961A-PS)

Next order a card to adapt power input...
Power Supply Ca*:
AC External Adapter Card (SM261A-CARD)
Redundant Power Supply Ca* (NOTE: Each card requires two chassis slots.):
100–240-VAC Input (SM261*AC)
-48-VDC Input (SM261*DC)