Preliminary Information
MH88620BR
Pin Description (Continued)
Pin #
Name
Description
22
23
24
25
26
27
28
29
30
31
32
33
34
NC
Z1
No Connection. Reserved.
Line impedance Node 1. Normally connects to Z2. See Fig. 3.
Line impedance Node 2. Normally connects to Z1. See Fig 3.
Transmit (Output). 4-wire (AGND) referenced audio output.
Receive (Input). 4-wire (AGND) referenced audio input.
Transmit Gain Node 0. Connects to GTX1 for 0dB transmit gain.
Z2
TX
RX
GTX0
GTX1
Transmit Gain Node 1. Connects to a resistor to AGND for transmit gain adjustment.
GRX0 Receive Gain Node 0. Connects to GRX1 for 0dB gain.
GRX1 Receive Gain Node 1. Connect to a resistor to AGND for receive gain adjustment.
NC
NC
No Connection. Reserved.
No Connection. Reserved.
No Connection. Reserved.
NC
SHK
Off-Hook Indication (Output). A logic low output indicates when the subscriber
equipment has gone Off-Hook.
35.38
39
IC
Internal Connection.
VEE
VDD
Negative Supply Voltage. -5V dc.
Positive Supply voltage. +5V dc
40
2-147
MITEL [ MITEL NETWORKS CORPORATION ]
