PCB Installation

RGLU2 – Loop/Ground Start CO Line Interface Unit

RGLU2 – Loop/Ground Start CO Line Interface Unit

Circuits per PCB: four line circuits

Interfaces with: loop or ground start lines

Older Version(s): RGLU1 (does not have hookflash to CO)

The RGLU2 also provides ring detection, dial outpulsing, and hold. Each RGLU2 line can be programmed for DTMF or dial pulse signaling and gas tube secondary protection.

RGLU2 controls, indicators, and interface connectors are shown in Figure 6-26and described in Table 6-18.

RGLU2 Installation

Note The decibel (dB) Pad switches SW101, SW201, SW301, and SW401 control excessive loudness resulting from close proximity to a central office or PBX telephone office by providing a -3 dB signal level drop to, or from, the PBX or central office when set to the 3 position. Switches are factory set to the 0 (0 dB signal level drop) position.

To install an RGLU2 PCB

1.If the Strata CTX670 is within one mile of the PBX or central office, set the dB Pad switches SW101, SW201, SW301, and SW401 to the 3 (-3 dB signal level drop) position.

2.Set each line for ground start (GND) or loop start (LOOP) by setting the following jumper plugs: SW103 for line 1, SW203 for line 2, SW303 for line 3, and SW403 for line 4.

3.Insert the RGLU2 (component side facing right) into the appropriate slot and apply firm, even pressure to ensure proper mating of connectors.

4.After installing the RGLU2, gently pull the PCB outward. If the connectors are properly mated, a slight resistance is felt.

Table 6-18 RGLU2 Controls, Indicators, and Connectors

Control/Indicator/

Type of Component

Description

Connector

 

 

Line circuit 1

 

Lights to indicate that line circuit is in operation.

 

 

Line circuit 2

Red LED

CO line indicator will not light unless RGLU2 is

 

Line circuit 3

 

connected to a line.

 

 

Line circuit 4

 

 

 

 

 

 

J1 connector

Modular connector

RJ14 modular Interface connector for trunk

circuits 1 and 2.

 

 

 

 

 

J2 connector

Modular connector

RJ14 modular Interface connector for trunk

circuits 3 and 4.

 

 

 

 

 

Pad switch SW101 (circuit 1)

 

 

 

 

 

Pad switch SW201 (circuit 2)

2-position slice switch

Enables -3dB signal level drop for trunk circuits.

 

Pad switch SW301 (circuit 3)

 

 

 

 

 

Pad switch SW401 (circuit 4)

 

 

 

 

 

6-36

Strata CTX I&M 06/04

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Image 260
Toshiba CTX28 manual RGLU2 Loop/Ground Start CO Line Interface Unit, RGLU2 Installation, To install an RGLU2 PCB