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DEFINITYEnterpriseCommunicationsServerandSystem75andSystem85
Terminals and Adjuncts Reference
555-015-201
Issue 11
December 1999
The 500 and 2500 Series Telephones
14-33The 2500 MMGN and 2500 YMGP and 2554 MMGN and 2554 YMGP Telephones
14
Ringing
All of these 2500 Series telephones have an electronic tone ringer. There is a
3-position ringer volume control located on the bottom of the telephone.There are
three settings on the volume control: High, Low, and Off.
Mounting Options
The 2500 MMGN and 2500 YMGP telephones can only be desk-mounted. They
cannot
be wall-mounted. The 2554 MMGN and 2554 YMGP telephones are wall
model telephones.
Color Options
All of these 2500 Series telephones are available in black or misty cream.
Distance Limitations
The maximum allowable distances of a 2500 telephone from the DEFINITY G1,
G2, and G3, DEFINITY ECS, System 75, or System 85 cabinet are shown in the
table below.
Power Requirements
All of these 2500 Series telephones are powered by the tip and ring leads. These
telephones do not require any external power supply.
Table 14-6. Distance Limitations for the 2500 MMGN, 2500 YMGP,
2554 MMGN, and 2554 YMGP Telephones
System Port Board
Nominal Maximum Range in Feet
(Meters)
24 AWG 26 AWG
SYSTEM 85 SN229
SN228B
3,500 (1,067)
15,000 (4,572)
3,500 (1,067)
9,000 (2,743)
DEFINITY G2 SN229
SN228B
TN742
TN746
TN746B
3,500 (1,067)
15,000 (4,572)
20,000 (6,100)
3,100 (945)
3,100 (945)
3,500 (1,067)
9,000 (2,743)
13,000 (3,962)
2,000 (610)
2,000 (610)
DEFINITY G1 and
G3, DEFINITY
ECS, and System
75
TN742
TN769
TN746
20,000 (6,100)
20,000 (6,100)
3,100 (945)
13,000 (3,962)
13,000 (3,962)
2,000 (610)