T1
Hardware and Cabling
Strata CTX I&M 10/02
6-9
T1
Figure 6-7
RDTU Cable Connections
Notes
•
Pins 2 and 4 of the DB-15 connector in most CSUs are frame ground. No connection is
required.
•
NDTU cable is supplied with RDTU PCB (30 ft. maximum).
•
Customer-supplied span cables must be 22 AWG, ABAM cable or, if using standard 24 AWG
twisted pair, the transmit pair must be separated from the receive pair by at least 5-cable pairs.
Most CSU manufacturers supply cables to connect the CSU to the Network Interface Unit or
other CPE equipment.
1670
RDTU PCB
(26)
(1)
(27)
(2)
T
R
T1
R1
Black
Red
White
Green
Customer-supplied Cable (See Notes)
RDTU To Customer Premise Equipment (CPE) T1
RDTU Amphenol
CPE T1 (PBX
or Key
System) or
Channel Bank
655 Feet Maximum
Transmit
Receive
(4) T
(5) R
(1) T1
(2) R1
Network
Interface Unit
USOC-RJ48C
or RJ48X
8-Pin Modular
(RJ45 Type Jack)
NDTU DB-15
Connector (Male)
DB-15
Connector (Female)
Customer Supplied
Cable (See Notes)
RDTU To Network or Long Distance T1 Provider
NDTU
Amphenol
Connector (Male)
(1)
(9)
(3)
(11)
Customer-
supplied
CSU
RDTU PCB
(26)
(1)
(27)
(2)
T
R
T1
R1
Black
Red
White
Green
(1)
(9)
(3)
(11)
NDTU Cable (30 ft. Maximum)
Transmit
Receive
Summary of Contents for Strata CTX100
Page 16: ...Introduction Related Documents Media xii Strata CTX I M 10 02 ...
Page 94: ...Strata CTX100 Installation Installing the CTX100 Cabinet 2 24 Strata CTX I M 10 02 ...
Page 150: ...Strata CTX670 Installation Remote Expansion Cabinet Unit 3 56 Strata CTX I M 10 02 ...
Page 188: ...PCB Installation Network Requirements 4 38 Strata CTX I M 10 02 ...
Page 238: ...T1 Loop Back Testing 6 12 Strata CTX I M 10 02 ...
Page 310: ...Station Apparatus 2000 series Telephones 8 48 Strata CTX I M 10 02 ...
Page 342: ...Peripheral Installation Station Message Detail Recording SMDR 9 32 Strata CTX I M 10 02 ...