DK40i Installation
DK40i Secondary Protection
Strata DK I&M 6/00
3-41
D
K
40
i Installation
DK40i Secondary Protection
The following diagram (see
) shows where secondary protectors must be installed for
outside wiring.
Figure 3-24 DK40i Secondary Protector Diagram
Important!
To protect against transient voltages and currents, solid state secondary protectors
must be installed if there is outside wiring, and on all DID and E&M Tie lines.
These protectors, which contain fast semiconductors in addition to fuses, shall
comply with the requirements for secondary protectors for communication circuits,
UL 497A. Care must be taken to ensure that they are very well grounded to a
reliable earth ground. Recommended protectors are available in the fast Series 6
line from ONEAC Corp., Libertyville, Illinois 60048, (800) 327-8801. Install and
test the secondary protectors precisely to the installation instructions of thee
manufacturer.
Standard
Telephone
Building #1
Building #2
TCOU, PCOU,
RCOU/RCOS
RGLU, RCIU/RCIS,
RBUU, RBUS, TBUU
RBSU or TBSU
RDDU
TDDU
Electronic or
Digital Telephone
Electronic or
Digital Telephone
or Cordless Base
MDFB
E&M tie Line
Ground/Loop
CO Line
Secondary protectors – standard voltage
Secondary protectors – low voltage
HDCB
or DDCB
DK40i Base
KSU DKT
PEKU
PESU
PDKU
RDSU
HDSS or
DDSS
Console
HESB
REMU
DID Line
BRI U
NT-1
DID Line
DDCB or
HDCB
MDFB
PSTU/KSTU2
RSTU/RSTU2
RDSU/RSTS
5239
(Earth Ground)
(Earth Ground)
Summary of Contents for Strata AirLink DK40i
Page 22: ...Introduction Related Documents Media xx Strata DK I M 6 00 ...
Page 48: ...DK14 Installation DK14 Wiring Diagrams 1 26 Strata DK I M 6 00 ...
Page 220: ...DK424 Installation Remote Cabinet Installation Instructions 5 68 Strata DK I M 6 00 ...
Page 262: ...DK424i Configuration Primary Reserve Power Cabinet Hardware 6 42 Strata DK I M 6 00 ...
Page 450: ...Universal Slot PCB Wiring Option Interface PCB Wiring Diagrams 10 42 Strata DK I M 6 00 ...
Page 592: ...Peripheral Installation Enhanced 911 Service E911 12 84 Strata DK I M 6 00 ...
Page 616: ...ACD Installation Spectrum Electronic Wall Boards 13 24 Strata DK I M 6 00 ...
Page 634: ...Fault Finding Fault Isolation Flowcharts 14 18 Strata DK I M 6 00 ...
Page 704: ...ISDN Interfaces ISDN Disconnect Cause Code 16 54 Strata DK I M 6 00 ...