Hardware And Cabling; Rdtu Cable Length Switch; Rdtu Loop Back Jumper Plugs - Toshiba STRATA DK14 Installation And Maintenance Manual

In Figures 8-5 and 8-6, special cable and connectors are customer-provided.
Strata DK
R (1)
RDTU
T (26)
T1
R1 (2)
T1 (27)
RDTU Amphenol
Connector
(Pin No.)
Figure 8-5 Required Cables/Connectors for RDTU Connection at Distances of Less than 655 (200 Meters)
Strata DK
TOSHIBA
NDTU Cable
30 ft. max.
RDTU
E&M
Tie Lines
Figure 8-6 RDTU Connection via CSU and Channel Bank

Hardware and Cabling

RDTU Cable Length Switch

The distance between the DK, RDTU and CSU or RDTU to other Customer Premise Equipment
(CPE) T1 may vary (0~655 ft.) as shown. (See
transmitter must be equalized and its impedance must be matched to the cable length connecting
the RDTU to the CSU or other CPE, T1.
RDTU transmit equalization/ impedance matching is accomplished by setting RDTU SW1 for the
proper cable length (see
Jumpers (Internal Option)"

RDTU Loop Back Jumper Plugs

The RDTU PCB provides jumper plugs for loop back testing. Loop back tests are described in
"Loop Back Testing"
Strata DK I&M 6/00
Customer-provided Special
Cable/Connectors
RDTU
Transmit
RDTU
Receive
(Maximum 655 ft.)
Cable A
CSU CSU
More than 655 ft.
Figure 8-5 for SW1 location and
on Page 8-2 for SW1 setting instruction).
on Page 8-14.
Cable B
Channel
Bank
Figures 8-4, 8-5, and 8-6.) The RDTU interface
"SW1 Equalizer Switch and Loop Back
T1
Hardware and Cabling
PBX or other CPE
(2) Rr
PBX/Key
(27) Rt
System
or...
Channel
(1) Tr
Bank
(26) Tt
PBX Amphenol
Connector
1667
Analog PBX
or...
Key System
Analog
Tie Line
1668
8-11