DK424 Installation
Site Requirements
Strata DK I&M 6/00
5-5
DK424 Installa
tion
Cable Lengths
In a single site installation, the Base and optional Expansion Cabinets must be placed within the
allowed maximum distance of each other as designated by
Remote Expansion Cabinets may be installed up to three kilometers away, using fiber optics and
RRCU1A PCBs.
Table 5-2
Station Loop Requirements
Device
Interface PCB
Circuits
No. of Wire Pairs
(use 24 AWG
twisted pair)
Max Loop
Resistance
(including
device)
Maximum Distance from
Cabinet to Device
Digital telephones
1
1. Two-pair wiring or optional telephone power supply is required to achieve maximum range with DADM, OCA, Headset, or
Data Interface Unit.
PDKU (1~8)
or
RDSU (5~8)
1-pair
40 ohms
1000 ft. (303 m)
DDSS consoles
PDKU (8)
PDIU-DS
PDKU (1~8)
or
RDSU (5~8)
DDCB
PDKU or
RDSU (5)
Attendant Console
RATU (1~4)
2-pair
HDCB
PEKU (5) or
PESU (5)
2
2. PESU circuits 3 and 4 are not used.
Electronic telephones
PEKU or PESU
2-pair (3-pair
required for OCA)
RPCI-DI
or
PDIU-D12
PDKU (1~8)
or
RDSU (5~8)
Shares digital
telephone wire-
pair
DADM
PDKU (1~8)
or
RDSU (5~8)
RATI
RATU (1~4)
1 or 2-pair
HDSS consoles
PEKU (7 & 8)
2-pair
20 ohms
500 ft. (152 m)
Standard telephones,
voice mail, Auto
Attendant, etc.
PSTU (1~8)
or
PESU (1 & 2)
1-pair
300 ohms
Approx. 3000 ft. (909 m)
with 150 ohm device.
3
3. See manufacturer’s product specifications for exact resistance of device.
RSTU (1~8)
RDSU/RSTS (1~4)
without R48S
option
600 ohms
Approx. 9000 ft. (2727 m)
with 150 ohm device.
RSTU (1~8)
RDSU/RSTS (1~4)
with R48S option
1,200 ohms
Approx. 21000 ft. (6363 m)
with 150 ohm device.
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 ...