Evaluation Kit for CMX602B
EV6021
1.3
Quick Start
This section provides instructions for users who wish to experiment immediately with the evaluation
kit. A fuller description of the kit and its use linked to a PC appears later in this document.
1.3.1
Setting-Up
THE EV6021 COMES PRE-CONFIGURED FOR OPERATION AT 3.3 VOLTS.
An RJ11 (US style) phone jack is provided for caller ID simulator connection. Power is connected via
the two-way socket, J5. No board adjustments are required by the user. Telco-specific components
may be added, as required.
1.3.2
Operation
Ensure no connection to serial port connector J6 and switch on the power supply. The message
EF6021 Vx.x will be visible on the LCD module plus an indication as to which function option is
selected. The three switches, SW2 to SW4, give the options of BT or Bellcore, Type 1 or Type 2 and
Adjunct Box or Feature Phone.
JP5
JP6
R59
RP2
R1V1
D24
D19
R67
C27
C28
PROG
OP
LCD1
U5
EF6021Vx.x
C24
R24
Bell, Type2, FP
J6
RS232
C1
R54
D17
R58
D15
HAND
D16
D21
D18
SET
J3
4
2
3
IRQN
ZP
MODE DET L'CAL MUTE
BELL/BT
FP/ADJ
TYPE2/1
Figure 2 Function Selection
A fuller description of these functions is given later in the document.
If a type 2 demonstration is selected switch SW1 should be set to ‘RESISTIVE’ which selects a
factory-fitted 600Ω line termination, (R21) but an alternative value can be substituted.
If a complex line termination is required, positions C11, R16 and R19 can be used with switch SW1
set to ‘COMPLEX’.
An off-hook dc load is provided by R8. The factory-fitted value is 2k2Ω but this may be removed or
an alternative value substituted.
D7
D7
R45
R45
T1
T1
R21
R16
R19 TP3
TP3
C10
C11
C10
HOOK
HOOK
R19
R21
U3
U3
R30
R30
C11
R16
R8
TP4
TP4
R8
C14
C14
SW1
RESISTIVE
SW1
C7
C7
RESISTIVE
COMPLEX
COMPLEX
Figure 3 Termination Positions
2000 Consumer Microcircuits Limited
5
UM6021/4
CMLMICRO [ CML MICROCIRCUITS ]
