Envoy Configuration and Management Manual

WAN Subsystem Profiles and Modifiers for Envoy

Envoy Configuration and Management Manual—429861-001

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Modifier Descriptions

This modifier applies to BSC lines only. It specifies that the 8-bit LRC block-check

character is used.

MONITORCD

Default: ON

Units: Not applicable

Range: Not applicable

Alternate modifier: None

This modifier applies to BSC lines only. It enables monitoring of the carrier signal (CF)

during transmission. If a signal loss is detected, a modem error is reported.

The MONITORCD modifier should be used only for full-duplex lines. If it is used for

half-duplex lines, the carrier must be dropped when there is a line turnaround. Dropping

the carrier signal indicates that one side is through transmitting and the other side can

begin. In half-duplex configuration, the use of this modifier would cause modem errors

for half-duplex, even if the line were functioning correctly.

MONITORCTS

Default: ON

Units: Not applicable

Range: Not applicable

Alternate modifier: None

This modifier applies to BSC lines only. It enables monitoring of the clear-to-send (CB)

signal during data transmission. If a signal loss is detected, a modem error is reported.

MPSUPV

Default: MPSUPV for BSC, ADM, and TINET lines; PPNSW for SIMPLEX and ASC

lines; and MPTRIB for BSC multipoint tributary lines

Units: Not applicable

Range: Not applicable

Alternate modifiers: PPNSW, PPSW, MPTRIB

This modifier applies to all Envoy line types. It is required for a multipoint supervisor

line.

The SWITCH modifier is removed when you specify the MPSUPV modifier.

Note. This modifier is similar to the CBSENSEON/CBSENSEOFF device modifiers.