Direct I/O Messaging

Direct I/O allows for the sharing of

high-speed digital information between

multiple UR relays via direct back-to-back

connections or multiplexed through a

standard DS0 multiplexer channel bank.

Regardless of the connection method,

direct I/O provides continuous real

time channel monitoring that supplies

diagnostics information on channel health.

Direct I/O provides superior relay-to-relay

communications that can be used in

advanced interlocking and blockingschemes.

• Communication with up to 16 UR relays

in single or redundant rings rather than

simplistic point-to-point configurations

• Connect to standard DS0 channel

banks through standard RS422. G.703

or IEEE C37.94 interfaces or via direct

fiber optic connections

• Built-in continuous loop and channel

monitoring provides real-time

diagnostics of your communication

channels with no external or handheld

tester required