GAI-Tronics 227-005 SMART Auto-Dial Handset Telephones - Manual (Page 30)

Pub. 42004-443C
SMART A UTO -D IAL H ANDSET T ELEPHONES P AGE
28 of 31
f:\standard ioms - current release\42004 instr. manuals\42004-443c.doc
02/13
Specifications
TMA Compatibility profile type .......................................................................................... Type A Handset
Electrical
Minimum loop current (48 V dc only) ................................................................................................ 20 mA
Operation ....................................................................................................................................... Loop start
Volume control ............................................ Five steps, in accord with 704.3, Volume Control Telephones
(ADA-ABA Guidelines, July 2004)
Auxiliary outputs (isolated solid state switch) ................................................................ 48 V dc @ 125 mA
28 V
RMS
@ 80 mA
RMS
Mechanical
Operating temperature range (refer to page 18) .................................... −4º F to +140º F (−20º C to +60º C)
Relative humidity .................................................................................................... to 95%, no condensation
Model 227-005
Construction
Enclosure ...................................................... Thick-walled cast aluminum with protective gray coating
Panel ........................................................................................................ 0.125-inch brushed aluminum
Handset/cord .......................................................... G-style with 19-inch armored cord and internal lanyard
Dimensions ............................................................................................. 13.50 H
 9.70 W  6.15 D inches
Mounting ....................................................................................................... Eight 0.39-inch diameter holes
Weight ............................................................................................................................................... 14.5 lbs.
Model 247-005
Construction .................................................................................... High impact, glass-reinforced polyester
Handset/cord ............................................................. 6-foot Hytrel
® cord with noise-canceling microphone
Dimensions ............................................................................................... 9.50 H  8.00 W  6.90 D inches
Mounting ........................................................................................................ Four 0.28-inch diameter holes
Weight ................................................................................................................................................. 4.8 lbs.
Model 257-005
Construction .................................................................................... High impact, glass-reinforced polyester
Handset/cord ............................................................. 6-foot Hytrel
® cord with noise-canceling microphone
Dimensions .............................................................................................. 13.20 H  9.40 W  7.40 D inches
Mounting ......................................................................................................... Four 0.28-inch diameter holes
Weight ................................................................................................................................................ 10.0 lbs.