MH88600 Ver la hoja de datos (PDF) - Mitel Networks

Número de pieza

componentes Descripción

Fabricante

MH88600

0.3-15V; 4W; global SLIC. For PABX, intercoms, key systems, central office equipment

Mitel Networks 

MH88600

Preliminary Information

VBat 2

RF1 3

RF2 4

RING 5

TIP 6

IC 7

GNDBat 8

TF2 9

TF1 10

GNDA 11

VEE 12

VDD 13

VRR 14

RC 15

RD 16

LCA 17

SHK 18

EGB 19

VRef 20

40 ZN14

39 ZN13

38 ZN12

37 ZN11

36 ZN10

35 ZN9

34 ZN8

33 ZN7

32 ZN6

31 ZN5

30 ZN4

29 ZN3

28 ZN2

27 ZN1

26 TX

25 PG3

24 PG1

23 PG2

22 PG4

21 ZN0

Pin Description

Pin #

Name

1

2

VBat

3

RF1

4

RF2

5

RING

6

TIP

7

I/C

8

GNDBat

9

TF2

10

TF1

11

GNDA

12

VEE

13

VDD

14

VRR

15

RC

16

RD

17

LCA

18

SHK

19

EGB

20

VRef

Figure 2 - Pin Connections

Description

No pin at this location.

Battery Supply Voltage (Negative).

Ring Feed (1): Connect to relay contact. See Figures 6 & 7.

Ring Feed (2). Connect to relay contact. See Figures 6 & 7.

Connects to the “Ring” or “B” lead of the telephone line.

Connects to the “Tip” or “A” lead of the telephone line.

Internal Connection.

Battery Supply Ground (Positive): Connect to System Ground

Tip Feed (2). Connect to TF1 for unbalanced ringing, see Figure 6. Connect to relay

contact for balanced ringing, see Figure 7.

Tip Feed (1). Connect to TF2 for unbalanced ringing, see Figure 6. Connect to relay

contact for balanced ringing, see Figure 7.

Analog Ground: Normally connected to System Ground.

Negative Power Supply Voltage: Normally -5V.

Positive Power Supply Voltage: Normally +5V.

Ringing Relay Clamp Diode: Connect to relay coil and to relay supply voltage

(Positive). For +5V relay, connect to VDD.

Ring Control (Input): A logic high will activate the Ring Relay Drive if SHK is high.

Ring Relay Drive (Output). Connect to relay coil. A logic low will activate the relay by

sinking current from VRR through the relay coil.

Loop Current Adjust (Input): Loop current is proportional to the voltage at this input.

Normally connected to VRef

Switch Hook Detect (Output): A logic low indicates an off-hook condition.

Earth Ground Button (Output): A logic low indicates a grounded Ring lead condition.

Voltage Reference (Output): Normally connected to LCA for default loop current.

2-84

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