Toshiba Strata AirLink DK40i, Руководство по установке и обслуживанию

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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
Table 5-2 .
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
1
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
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.
3
RSTU (1~8)
RDSU/RSTS (1~4)
with R48S option
1,200 ohms
Approx. 21000 ft. (6363 m)
with 150 ohm device.
3