Huawei HONET FA16 H301CDI Direct Dial-in User Interface Board-Optical transimission network

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Huawei HONET FA16 H301CDI Direct Dial-in User Interface Board

The FA16 H301CDI board (referred to as CDI board) is a 16-channel direct dial-in subscriber interface board, which realizes analog subscriber port pass-through.The CDI board utilizes digital-to-analog conversion between CDI ports and ASL ports, transparent transmission, and host signaling processing, and can realize transparent extension of the analog subscriber ports of other externally connected switches within the FA16 system.

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Product Introduction

Product Description

The H301CDI board (CDI board for short) is a 16-way direct dial-in user interface board.

FA16 H301CDI/A Working Principle

Main Functions and Principles The CDI board mainly accomplishes the function of direct dial-in, which is inserted in the slot of the user board, and each channel can dynamically occupy any one of the two HW time slots. It accomplishes the following functions.

Detect polarity;

Detecting feeder;

Dial-in function (double tone, pulse);

Dynamic occupation of time slots;

Detection of ringing current;

Detection of signaling tones;

Tap-fork transfer, etc.

The principle of CDI single board is shown in Fig. 1 and Fig. 2.

Fig. 1 Schematic diagram of H301CDI single board

Figure 2 H601CDI single board schematic diagram

The basic principle of CDI single board is described as follows:

The control module controls the switching module while monitoring the status of the line module in real time to realize the management of the whole board.
The line module H301CDI provides 16-channel analog user interface externally and H601CDI provides 16-channel FXO interface externally to realize A/D and D/A conversion.
The switching module realizes the time slot switching function.

FA16 CDI Panel Description

CDI panel description is shown in Table 1 and Table 2.

Table 1 H301 CDI Panel and Description


	RUN: Running Status Indicator
	Indicator light blinks as follows when non-shielded puller bar:
	Red light 0.5s on 0.5 off cycle blinking	Abnormal communication with the host
	Red light 1s on 1s off cycle blinking	Normal work of the single board
	Red light 0.125s on 0.125s off blinking 3s	Self-test did not pass
	Indicator light blinks as follows when shielding the puller bar:
	Green light 0.5s on 0.5 off cycle blinking	Abnormal communication with host
	Green light 1s on 1s off cycle blinking	The single board is working normally
	Green light 0.125s on 0.125s off blinking 3s	Self-test did not pass

	CH0～CH15: Channel monitoring light
	Green light is always on	Corresponding channel is occupied
	Green light off	Corresponding channel is idle

Table 2 H601CDI Panel and Description


	RUN: Operation status indicator
	Indicator light blinks as follows when non-shielded handle bar:
	Green light 0.5s light 0.5 off cycle blinking	Abnormal communication with the host
	Green light 1s on 1s off cycle blinking	Normal work of the single board
	Green light 0.125s light 0.125s extinguish fast flash 5s	Self-test did not pass
	Green light time is less than 20s	Single board initialization self-test

	CH0～CH15: Channel monitoring light
	Green light is always on	Corresponding channel is occupied
	Green light off	Corresponding channel is idle

FA16 H301CDI External Interface

The CDI interfaces are distributed on the backplane or the corresponding adapter board, and the interface descriptions are shown in Table 3 and Table 4.

Table 3 H301CDI interface description

Interface	Function	Position	Connection Description
16-channel POTS user interface	For accessing POTS signals.	Backplane (Rear Maintenance Frame)	Connects to the Patch Panel using a 32-way subscriber cable (ports 0 to 7, 24 to 31).
16-channel POTS user interface	For accessing POTS signals.	SLTF (Front Maintenance Frame)	Use 32-way user cables (0 to 7, 24 to 31 ports) to connect to the patch panel.

Table 4 H601CDI Interface Description

Interface	Function	Position	Connection Description
16-channel FXO interface	Docking with FXO interface.	Backplane (Rear Maintenance Frame)	Connects to the Patch Panel using a 32-way subscriber cable (ports 0 to 7, 24 to 31).
16-channel FXO interface	Docking with FXO interface.	SLTF (Front Maintenance Frame)	Use 32-way user cables (0 to 7, 24 to 31 ports) to connect to the patch panel.

This product technical parameters and product features provided by Shenzhen Guihang Network Technology Co., Ltd (www.opticaltrans.com), reproduced please retain. Huawei SDH Optical Transmission Equipment,SDH Transmission Equipment Sales Tel: 18529092692 Welcome to call us!

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