Black Box ME445C-35, ME444AE-R3, ME445C-X.21, ME444A-R3, ME445C-530 manual Signal ITU-TSS Lead

Page 30

CHAPTER 4: Installation

Table 4-2. Pinout of the RackNest 2/14’s DB25 connector when ME445C-530 is installed or RS-530 standalone’s DB25 connector.

SIGNAL

ITU-TSS

LEAD

DB25

NAME (ABBREV.)

CIRCUIT

TYPE

PIN

 

 

 

 

Shield (SHD)

101

 

1

 

 

 

 

Signal Ground (SGND)

102

 

7

 

 

 

 

Transmitted Data (TD)

103

A

2

 

 

B

14

 

 

 

 

Received Data (RD)

104

A

3

 

 

B

16

 

 

 

 

Request to Send (RTS)

105

A

4

 

 

B

19

 

 

 

 

Clear to Send (CTS)

106

A

5

 

 

B

13

 

 

 

 

DCE Ready (DCR)

107

A

6

a.k.a. Data Set Ready (DSR)

 

B

22

 

 

 

 

Data Terminal Ready (DTR)

108

A

20

 

 

B

23

 

 

 

 

Received Line Signal Detector (RLSD),

109

A

8

a.k.a. Carrier Detect (CD)

 

B

10

 

 

 

 

Transmitter Sig. Elem. Timing (DTE Source)

113

A

24

(TSETT), a.k.a. External Clock (EXTC)

 

B

11

 

 

 

 

Transmitter Sig. Elem. Timing (DCE Source)

114

A

15

(TSETC), a.k.a. Transmit Clock (TC)

 

B

12

 

 

 

 

Receiver Sig. Elem. Timing (DCE Source)

115

A

23

(RSETC), a.k.a. Receive Clock (RC)

 

B

22

 

 

 

 

Remote Loopback (RL)

140

 

21

 

 

 

 

Local Loopback (LL)

141

 

18

 

 

 

 

Test Mode (TM)

142

 

25

 

 

 

 

29

Image 30
Contents Kbps Line Driver FCC and IC RFI Statements Safety Warnings Declaration of Conformity Kbps Line Driver V.35, RS-530, or NOM Statement Trademarks Used in this Manual Contents Specifications Flow Control NoneSpecifications Introduction Physical DescriptionLine driver block diagram Functional DescriptionModulation Timing Applications Point-to-point applicationTail-circuit application Configuration Placement of the Standalone VersionInstalling the Card Version in the RackNest 2/14 Description of the Racknest 2/14’S Power Supply Configuring the Standalone or Card Version User-configurable optionsUser-configurable options Layout of the 256-kbps Line Driver circuit board Kbps Line Driver V.35, RS-530, or Installation Installing the Standalone Version in 19-Inch RacksInstalling a single unit in a 19-inch rack Installing two units in a 19-inch rack Installing the 256-kbps Line Driver Rackmount Card Version Installing a card in the RackNest 2/14RackNest 2/14 illustrated Function Installation Kbps Line Driver V.35, RS-530, or Signal ITU-TSS Lead Name Abbrev Circuit Type Rack Norm Nest PIN Pinout of the V.35 standalone’s M/34 connector DB25 DA15 Connecting Data Cables Line Connection Installation Controls and Indicators OperationOperation Operating Procedure IndicatorsTroubleshooting Bit-Error-Rate Tester BertLoop Tests Bert using loops Modem Self-Test Local Analog LoopbackLocal analog loopback Remote Digital Loopback Local Digital Loopback Remote digital loopbackCalling Black Box Local digital loopbackShipping and Packaging Appendix Maximum Distances 19-AWG 22-AWG 24-AWG 26-AWG Kbps MilesCopyright 2004. Black Box Corporation. All rights reserved