
MAXIMUM CABLING DISTANCES
Equipment
EIA interface (data line circuit
pack and ADU):
19.2 kbps
9.6 kbps
4.8 kbps
2.4 kbps
1.2 kbps
0.3 kbps
Voice terminals:
Analog
8-port circuit pack (TN742, TN769), on-premises or
out-of-building — same premises (notes 1 and 2)
500- or 2500- type (note 3)
7100 series
16-port circuit pack (TN746), on-premises only
— no out-of-building or bridging (note 1)
AT&T 500 or 2500 type terminals without adjuncts
16-port circuit pack (TN746B), on-premises or
out-of-building — same premises (notes 1 and 2)
500- or 2500-type (note 3)
7100 series
Hybrid (TN762)
7300 series (without aux power)
7300 Series (with aux power)
Digital (TN754B) (Note 4)
7400D series
Phantom powered
Locally powered
Digital (TN754)
7400D series
On-premises-only terminals
Out-of-bldg. same premises terminals (note 4)
24-Gauge Wire
(0.5106 mm)
Feet
2000
5000
7000
12000
20000
40000
20000
15200
3100
20000
15200
1000
2000
3400
5000
3000
2400
Meters
610
1524
2130
3654
6100
12200
6100
4633
945
6100
4633
305
610
1037
1524
914
732
26-Gauge Wire
(0.4049 mm)
Feet
2000
4000
6000
10000
16000
30000
13000
10000
2000
13000
10000
750
2000
2200
4000
2200
1300
Meters
610
1219
1827
3050
4875
9150
3962
3050
610
3962
3050
229
610
670
1219
670
396
93
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