AT&T DEFINITY 7100 series Bedienungsanleitung PDF herunterladen (Seite 79)

PORT CIRCUIT PACKS

Analog Line (TN2135) — non-US Installations

The TN2135 provides 16 analog line ports and ground key

detection. Each port has tip and ring signal leads. The TN2135 is

defaulted to A-law companding and allows a down-link message to

override the default and choose µ-law companding. The TN2135

has administrable ring patterns and secondary lightning protection.

Analog Line (TN2144) — non-US Installations

The TN2144 provides 16 analog line ports and ground key

detection. Each port has tip and ring signal leads. The TN2144 is

defaulted to A-law companding and allows a down-link message to

override the default and choose µ-law companding. The TN2144

has administrable ring patterns and secondary lightning protection.

Analog Line (TN2149) — non-US Installations

The TN2149 provides 16 analog line ports. Each port has tip and

ring signal leads. The TN2149 is defaulted to A-law companding

and allows a down-link message to override the default and choose

µ-law companding. The TN2149 has administrable ring patterns

and secondary lightning protection.

Announcement TN750 or TN750B

The TN750 and TN750B record and store announcements that can

be played back on demand as part of a calling feature. The TN750

can record up to four minutes and 16 seconds of announcement

time, and the TN750B can record up to eight minutes and 32

seconds of announcement time. The TN750B can record mes-

sages from on- or off-premisis voice terminals and store up to 128

recorded announcements of eight maximum minutes each.

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AT&T DEFINITY 7100 series Bedienungsanleitung Seite 79