MITEL MH80626C Datasheet

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MH80626C

Battery Feed/Protection SIP

Preliminary Information

Features

• 2 x high pow er, high voltage, thi ck fil m surg e
protection resistors

• 2 x high acc uracy, high stabili ty mat che d
battery feed resistors

• 2 replac eabl e 2AG f uses in surfac e-m ounted
fuse clips

• Used with th e MH8 9626C for a com ple te OPS
line interface

Applications

• Battery feed an d se cond ary pr otec tion for Off­Premise SLI CS

ISSUE 2 April 1995

Ordering Information

MH80626C 20 Pin SIL Package

0°C to 70°C

Descript io n

The MH80626C hybrid SIP provides a protection
circuit consisting of two 2AG size fuses in surface­mounted fuse clips and two high voltage, high power

5.5Ω surge resistors.

The MH80626C also provides two high stability, high
power 50 Ω feed resistor matched to 0.1%.

The SIP provides full secondary protection for the
MH89626C Off-Premise SLIC, allowing conformance
to the requirements of various international safety
and performance standards.

TIN

RIN

F1

F2

R1

R2

R3

R4

Figure 1 - Functional Blo ck Diag ram

TCOM

TF

T

R5

RF2
RF1

R

RF

RCOM

2-7

MH80626C Preliminary Information

TIN

NC

IC

NC

TCOM

T

R

RCOM

NC

IC

NC

RF

NC

TF

NC

RF1

NC

RF2

NC

RIN

1
2
3
4

5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

Figure 2 - Pin Connections

Pin Description

Pin # Name Description

1TINTIP Input. Connects to TIP conduct or of the Subscriber Loop.
2NCNo Connection: There is no pin in this locatio n
3ICInternal Connection: Do no connect to this pin.
4NCNo Connection: There is no pin in thi s location .
5 TCOM TIP Common: Connects to TIP pin of the SLIC via a normally closed ringing relay. See

Figure 1.
6TTIP Connection: Connects to TIP pin of the SLIC .
7RRING Connection : Connect to the RING pin of the SLIC.
8 RCOM RING Common: Connects to RING pin of the SLIC via a normally closed ringing relay. See

Figure 1.
9NCNo Connection: There is no pin in this location .

10 IC Internal Connection: Do not connect to this pin.
11 NC No Connection: There is no pin in this location .
12 RF RING Feed Connecti on : Connects to the RF pin of the SLIC.
13 NC No Connection: There is no pin in this location .
14 TF T IP Feed Co nn ection: Connect to the TF pin of the SLIC.
15 NC No Connection: There is no pin in this location.
16 RF1 RING Feed 1. Ringing Input: Connect s to ringing supply.
17 NC No Connection: There is no pin in this location .
18 RF2 RING Feed 2. Ringing Output: Connects to RING line through the ring relay contact.
19 NC No Connection: There is no pin in this location.
20 RIN RING Input : Connects to RING conductor of the subscriber loop.

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