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INSTALLATION-STATION APPARATUS
SECTION 100-816-206
MARCH 1993
6-2
To accommodate the digital telephone line cord,
the cable should be terminated in a modular sta-
tion connector block (RJ-11) at the station location.
The standard single-pair, modular digital telephone
cord that is sent with the telephone is 7 feet (the
maximum allowed is 25 feet).
NOTES:
1. Digital telephone cable runs must not
have the following:
Cable splits (single or double)
Cable bridges (of any length)
High resistance or faulty cable splices
2. See Section 100-816-208 for secondary
protector information.
2.20 Connecting Electronic Telephones to
the System (DK16 only)
2.21 The following provides information on how to
connect electronic telephones to the DK16 sys-
tem.
NOTE:
Before proceeding, see warning and caution
notes in Paragraph 2.01.
2.22 Electronic telephones are connected to elec-
tronic telephone circuits in the DK16 Expansion
Unit on the Electronic Telephone Interface Unit
(PEKU) and the Standard/Electronic Telephone
Interface Unit (PESU) via the main distribution
frame (MDF) with standard twisted-pair jacketed
telephone cable. Two-pair wiring, as a minimum, is
required for telephone connection. However, three-
pair wiring is recommended to permit future up-
grades, such as Off-hook Call Announce.
To accommodate the electronic telephone line
cord, the cable should be terminated in a modular
station connector block (RJ-11) at the station loca-
tion. The standard two-pair modular electronic
telephone cord length is seven feet (the maximum
allowed length is 25 feet). See Wiring diagrams,
Section 100-816-208 for more details.
NOTE:
See Section 100-816-208 for secondary pro-
tector information.
The overall length of the station cable run from the
DK16 key service unit (KSU) to the telephone must
not exceed 1,000 feet (305 meters), if using 24
AWG cable.
2.30 Connecting Standard Telephones to the
System
2.31 The following provides information on how to
connect standard telephones to the DK8 or DK16
system.
NOTE:
Before proceeding, see warning and caution
notes in Paragraph 2.01.
2.32 Standard telephones connect to standard
telephone circuits in the DK8 Standard Telephone
Interface Unit (QSTU), telephone circuits on the
DK16 Base Unit Standard Telephone Interface
Unit (KSTU), the DK16 Standard Telephone Inter-
face Unit (PSTU), and the DK16 Standard/Elec-
tronic Telephone Interface Unit (PESU) via the
main distribution frame (MDF) with standard
twisted-pair jacketed telephone cable. Single-pair
wiring is required. (Refer to Wiring Diagrams,
Section 100-816-208, for more details.)
NOTE:
See Section 100-816-208 for secondary pro-
tector information.
The standard telephone cable's overall loop resis-
tance, connected on- or off-premises, is 300 ohms
maximum, including the telephone resistance. This
also applies to all devices connected to standard
telephone circuits. A standard telephone connected
off-premises via the telephone network should
interface with OL13A lines (or equivalent) and
connect to an RJ21X FIC jack (or equivalent).
2.40 Telephone Wall Mounting
2.41 This section provides instructions on how to
mount digital telephones and electronic telephones
(DK16 only) to a wall or other vertical surface.
Instructions on mounting standard telephones are
not provided here; refer to the manufacturer's
documentation for those instructions.