Figure 7-8. Am8A Rear Panel Connections - AMERITECH AM8a Instruction Manual

RS232 Entries and Printouts
AC INPUT, AUTO-RANGE
90 - 264VAC
CONNECT TO CENTRAL OFFICE GROUND
POWER
90-264VAC
50-60HZ
1A FUSE
Current-Measurement Fuse and Spare on
bottom of circuit board. Remove screws and bottom cover
LINE/TIMS CONNECTOR PIN-OUT
9 M
1 PCM2-R1
10 E
2 PCM2-T1
11 SG
3 PCM2-R
12 SB
4 PCM2-T
13 LOOP-R
5 PCM1-R1
14 LOOP-T
6 PCM1-T1
15 CO GROUND
7 PCM1-R
16 CO GROUND
8 PCM1-T

Figure 7-8. AM8a Rear Panel Connections

February 10, 2000
(18-0037)
BATTERY CHARGE INDICATOR
24 PIN CONNECTOR FOR
LINE AND TIMS CONNECTIONS
C.O.
CHARGING
GND
2
pin 1
LINE/TIMS
POWER FUSE HOLDER,
CONTAINS ONE SPARE FUSE
AUX
5
1
MODEL
9 6
S/N
AUX RS232 PORT
USE FOR CHAINING TO
ADDITIONAL EQUIPMENT
17 TIMS-R1
18 TIMS-T1
AUX PORT PIN-OUT
19 TIMS-R
2 RX DATA
20 TIMS-T
3 TX DATA
21 CO GROUND
7 SIGNAL GROUND
22 CO GROUND
8 SPEAKER OUTPUT +
23 CO GROUND
9 SPEAKER OUTPUT -
24 CO GROUND
7-24
AM8a Instruction Manual
24
23
Remove feet to
remove bottom cover
RS232
1 13
25
14
MAIN RS232 PORT
TO TERMINAL OR PC
RS232 PORT PIN-OUT
2 TX DATA
3 RX DATA
4 RTS
5 CTS
7 SIGNAL GROUND
9 +12Volts
10 - 12Volts
20 DTR
22 RI
These signals are not provided
when RS232 Isolation Option
(25–0128) is installed in the unit
0037-S07.L_