Strata CTX670 Installation

Remote Expansion Cabinet Unit

11 J3 1

1

J1

15

1

J2

10

11 J4 1

 

 

 

 

 

 

 

 

-24v

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DG

 

 

 

 

 

 

 

 

 

PFT-CONTROL

 

SD

 

CD1

 

 

 

 

 

CD2

 

 

 

 

RDER

 

 

 

 

 

 

CD3

 

 

 

 

SYCF

 

 

 

 

 

 

 

 

 

 

 

CD4

 

 

 

 

SYCS

 

 

 

 

 

 

 

 

 

 

 

CD5

 

 

 

 

RST

 

 

ROMS1A

 

 

 

 

 

 

 

Optical

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Module

 

 

 

 

 

 

 

 

 

4379

TX Side

Remove Rubber Cap to plug in

Fiber Optic

PlasticCable

Cap

Fiber Optic

Cable

RX Side

CAUTION! Inserting the fiber connector at an angle or too forcefully can cause

Figure 4-42 ROMS1A Subassembly

Table 4-15 Fiber Optic Specification

Item

Specification

Transmission Speed

155.52 Mbps

 

 

Optical Source

LED, 1300 nm

 

 

Fiber Type

Multi-mode, Graded Index Fiber (GIF)

 

 

Core Diameter

62.5 micrometers

 

 

Cladding Diameter

125 micrometers

 

 

Connector Type

SC (2-pin transmit and receive)

 

 

Maximum Fiber Length

3 km (500~1000 MHz/km fiber)

2 km (200~400 MHz/km fiber)

 

 

 

Optical Budget (Loss)

9 dB (one way)

 

 

Minimum Bend Radius

30 mm

 

 

Round Trip Delay Time

30 micro seconds.

 

 

Transmit Power

>= -23.5 dBm

 

 

Receiver Sensitivity

<= -30 dBm

 

 

The fiber connection must conform to both the Optical Budget and Fiber Length specifications. It is possible to have a fiber connection longer than 3 km with less than 9 dB of loss; however, the CTX670 Remote Expansion Cabinet is sensitive to signal delay and cannot be guaranteed to operate at distances greater than 3 km.

Installation

Strata CTX670

 

 

Strata CTX I&M 06/04

4-59

Page 185
Image 185
Toshiba CTX28 manual ROMS1A Subassembly 15 Fiber Optic Specification