Instruction manual

MERLIN LEGEND Communications System Release 5.0

Maintenance and Troubleshooting

555-650-140

Issue 1

June 1997

Glossary

Page GL-30

OPT (off-premises telephone) Single-line telephone or

other tip/ring device connected to the system by an

008 OPT module in the control unit. Appears as an

inside extension to the system, but may be physically

located away from the system.

OPX (off-premises extension)

out-of-band

signaling

Signaling that uses the same path as voice-fre-

quency transmission and in which the signaling is

outside the band used for voice frequencies.

parity The addition of a bit to a bit string so that the total

number of ones is odd or even; used to detect and

correct transmission errors.

PassageWay Direct

Connect Solution

Set of software applications to provide an interface

between a personal computer and the system: card-

file, telephone programming application, call log and

viewer, incoming call management, and identification

and applications manager.

pass-through Connection from the internal modem to an attached

IS II/IS III application on the system.