NEC Aspire Manual page 244

Section 4: SpeciÞcations and Parts List
1. Do not run station cable in parallel with the AC source, telex or computer, etc. If the cables are
near cable runs to those devices, use shielded cable with grounded shields or install the cable in
conduit.
2. When cables must be run on the ßoor, use cable protectors.
3. Cable runs for key telephones, single line telephones, Door Boxes, CTA or CTU adapters, and
2PGDAD Modules must be a dedicated, isolated cable pair.
4. The Telco RJ21X and cross-connect blocks should install to the right of the Main Cabinet.
Extension blocks and cross-connect blocks should be installed to the left of the Main Cabinet.
Key Telephone, DSS
Console:
Single Line Telephone,
Analog Terminals:
20mA Setting:
35mA Setting:
SLT Adapter:
SLTAD to SLT:
2PGDAD Adapter:
Door Box to 2PGDAD:
Using Under Carpet Cable:
The cable is not twisted, but ßat parallel wire. Good impedance balance cannot be expected and reduces
the cable length to no more than 300m when using the ßat cable.
PC to CTA
CTA to Printer
236
Cabling Requirements
Aspire S Cable Requirements
Device
ICT 2-wire 26 AWG
ICT 2-wire 24 AWG
ICT 2-wire 22 AWG
ICT 2-wire 26 AWG
ICT 2-wire 24 AWG
ICT 2-wire 22 AWG
1,500 ohm loop resistance
900 ohm loop resistance
ICT 2-wire 26 AWG
ICT 2-wire 24 AWG
ICT 2-wire 22 AWG
500 ohm loop resistance
(including phone's DC
ICT 2-wire 26 AWG
ICT 2-wire 24 AWG
ICT 2-wire 22 AWG
ICT 2-wire 26 AWG
ICT 2-wire 24 AWG
ICT 2-wire 22 AWG
200 ohm loop resistance
(excluding internal resis-
tance of Door Box)
Serial Straight Thru
Serial straight cable
Cable Type Cable Run Length (ft)
656 (200 meters)
984 (300 meters)
1640 (500 meters)
6,561 (2000 meters)
10,498 (3200 meters)
17,388 (5300 meters)
656 (200 meters)
984 (300 meters)
1640 (500 meters)
termination)
656 (200 meters)
984 (300 meters)
1640 (500 meters)
656 (200 meters)
984 (300 meters)
1640 (500 meters)
49.21 (15 meters
Cable
49.21 (15 meters)
Notes
Includes resistance
of telephone
D-Sub 9-Pin Female
(PC) to D-Sub 9-Pin
Male (CTA)
D-Sub 9-Pin Female
(Printer) to D-Sub
9-Pin Male (CTA)
Product Description