Not applicable to SBC SWe Edge.

In this section:

FXS Upper

CardPart Number
FXS Upper404-40228-nnn

FXS Lower

 

CardPart Number
FXS Lower with Relays

404-40227-nnn

FXS Lower without Relays (not shown)

404-40403-nnn

Part numbers are subject to change; these parts cannot be ordered by customers.

Overview

The SBC 1000 FXS cards, both upper and lower, comprise four standard FXS ports with RJ-11 connectors. The RJ-11 connectors on the FXS card are black in color so that they can be easily distinguished from the SBC 1000 FXO cards (gray connectors) when installed in the chassis.

The SBC 1000 supports a maximum of six FXS cards, providing a maximum of 24 FXS ports. The number of FXS cards installed depends on the specific configuration and limited by the number of other daughter cards (FXO and BRI) installed as part of the specific configuration.

Interface Specifications and Limitations

Item

Value/Dimension

Maximum external Off-Hook resistance in short loop mode

600 ohms (This includes the resistance of the cable and the DC resistance of the termination device)

Typical Loop Current Limit

22 ma/port

Typical FXS Port Ringing Voltage

45V RMS with 3 REN load

Maximum Loop Length

3000m

Cable Gauge24 AWG

Dimensions and Weight

CardHeight mm/in. (PCB only) Width mm/in. (PCB only)Height mm/in. (Includes Connector overhang)Width mm/in. (Includes Connector overhang)Total Weight (lbs)
FXS Upper139.7/5.5076.2/3.00143.0/5.6376.2/3.00.1
FXS Lower139.7/5.5076.2/3.00143.0/5.6376.2/3.00.2

Environmental Ranges (Operation and Storage)

Environmental Parameter

Specification

Operating Environmental Conditions

Temperature: 5º to 40º Celsius
Humidity: 5% to 85% RH non-condensing
Altitude: 60 meters below sea level to 1800 meters above sea level

Storage Environmental Condition

Temperature: -40º to 70º Celsius

Circuit Protection

Protection circuits are included on the FXS card. The FXS circuit on the SBC 1000 meets the requirements of UL/EN60950.

The FXS circuits also include fusing and protection devices to comply with the following:

  • Telcordia GR-1089
  • ITU-T K.20/K.21

FXS Port Pinouts

FXS Port Pinouts

Installation and Service

SBC 1000 daughter cards are not user serviceable components.

SBC 1000 Daughter Board Configuration

The actual cards present in any given SBC 1000 system depends upon the selected part number ordered; please refer to the applicable sales person for more information.

Board Configuration