Transition Networks CAPTF3329-108 Leaflet

Loop Extender/Isolator

Automatic Ring Down

*Note: CAPTF cards cannot be used with the 1-Slot Point System™ Chassis™ . 

Devices must be used in pairs. Typical installation will include a chassis card installed in the Point 

System™ locally and a stand-alone device [SAPTF, pg 120] installed at the remote location.

Specifications

Standards 

 

FCC Part 68, TBR21

Analog Port    

 

Connector: RJ-11 

(Telephone Emulation or FXS) 

Impedance: 600 ohms 

   

REN: 0.48 

   

Loop Current: 20 to 60ma. 

   

Insertion Loss: 0.0 +/-1.0 dB at 1000 Hz when both    

 

 

 

ports are terminated at 600 ohms

Analog Port   

 

Impedance: 600 ohms 

(Central Office Emulation or FXO)  

Battery Source: 48 VDC +/- 5V 

   

Ringing Supply: 90Vp-p 

   

Ring Frequency: 25 Hz.  

 

 

 

(Reproduces frequency detected by side A) 

   

Ring Cadence: Reproduces cadence detected by side A 

   

Insertion Loss: 1.0 +/- 1.0 dB @ 1000 Hz  

 

 

 

 

when both ports are terminated at 600 ohms

Voice Frequency 

 

300 Hz – 3 KHz

Switches/Option Jumpers 

 

Automatic Ring Down/Normal

Status LEDs 

 

LED colors are Green 

 

SDF (Fiber Link): On indicates fiber link up;  

 

ACT (In Use): On indicates unit in use;  

   

Flashing indicates ringing;  

 

PWR (Power): On indicates power is on

Dimensions 

 

Height: 3.4” [86 mm] 

 

Depth: 5.0” [182 mm] 

 

Width: 0.86” [22 mm] 

Height: 3.4” [86 mm] 

 

Depth: 5.0” [182 mm] 

 

Width: 1.75” [43 mm]

Power Consumption 

  4 Watts 

7 Watts

Environment 

 

See chassis specifications

Shipping Weight 

 

1 lb. [0.45 kg]

Emissions Compliance 

 

FCC Class A; VCCI Class A; EN 55022  (CISPR 22)  

 

Class A; ICES 003

Safety Compliance 

 

CISPR A; CE Mark

Warranty 

 Lifetime

Connect central-office voice grade  
signals to distant Plain Old Telephone 
equipment 

(POTS)

 utilizing standard 

telephone signaling. Two units are  
required to implement an end to end 
system. Unit A connects to a telephone 
line or PBX and has the ability to de-
tect ringing voltages and to act as a  
telephone 

(LINE SIDE FXS).

 Unit B is the 

reciprocal unit and has the ability to act 
as a Central Office and connects to a 
telephone device 

(CUSTOMER SIDE FXO).

see also: 

POTS 2-Wire Stand-Alone NIDs 

Features

4

Audio transmission

4

Caller ID

4

Automatic Ring Down

4

Dual or single fiber options

4

SNMP Management

4

Ringing at the distant end

4

Electrical interface is provided  

    through an RJ-11 female connector

4

Field Upgradeable Firmware 

 

Ordering Information

  Twisted Pair (RJ-11) 

to  1300nm multimode (ST)  

  Twisted Pair (RJ-11) 

to  1300nm multimode (SC) 

  Twisted Pair (RJ-11) 

to  1310nm single mode (SC)

  Twisted Pair (RJ-11) 

to  1310nm single mode (SC)

  Twisted Pair (RJ-11) 

to  1310nm single mode (SC)

  Twisted Pair (RJ-11) 

to  1310nm single mode (SC)

Recommended use in pairs 

  Twisted Pair (RJ-11) 

to  1310nm TX/1550nm RX single fiber    

single mode (SC) 

 

  Twisted Pair (RJ-11) 

to  1550nm TX/1310nm RX single fiber    

single mode (SC) 

 

  Twisted Pair (RJ-11) 

to

  1310nm TX/1550nm RX single fiber    

single mode (SC) 

 

  Twisted Pair (RJ-11) 

to  1550nm TX/1310nm RX single fiber    

single mode (SC) 

 

* Note: Single Fiber products should be paired 

by application:

Loop Extender/Isolator Application 
Line Side FXS: CAPTF3329-105 
Customer Side FXO: CAPTF3329-116

Automatic Ring Down Application 
Line Side FXS: CAPTF3329-107

 

Customer Side FXO: CAPTF3329-108