Zenitel Phontech MPA 1601 - Page 21

Doc.No.: 03118-000
-DE
Page 14 of 16
Terminals Name Description Input/output
Interface Voltage Current /
Impedance
87 – 88 POWER
USER IN
TERFACE 2
Output Power supply output 24VDC 140 mA
89 – 90 AUDIO Bi
directional Electronically
balanced audio input
2Vrms 15k Ω
91 – 92 RS485 Bi
directional Data communication
tranceiver channel
RS485
5V 100 Ω
93 – 94 POWER
USER IN
TERFACE 3
Output Power supply output 24VDC 140 mA
95 – 96 AUDIO Bi
directional Electronically
balanced audio input
2Vrms 15k Ω
97 – 98 RS485 Bi
directional Data communication
tranceiver channel
RS485
5V 100 Ω
99 – 100 POWER
USER IN
TERFACE 4
Output Power supply output 24VDC 140 mA
101 – 102 AUDIO Bi
directional Electronically
balanced audio input
2Vrms 15k Ω
103 – 104 RS485 Bi
directional Data communication
tranceiver channel
RS485
5V 100 Ω
105 – 106 POWER
USER IN
TERFACE 5
Output Power supply output 24VDC 140 mA
107 - 108 AUDIO Bi
directional Electronically
balanced audio input
2Vrms 15k Ω
109 – 110 RS485 Bi
directional Data communication
tranceiver channel
RS485
5V 100 Ω
111 – 112 POWER
USER IN
TERFACE 6
Output Power supply output 24VDC 140 mA
113 – 114 AUDIO Bi
directional Electronically
balanced audio input
2Vrms 15 kΩ
115 – 116 RS485 Bi
directional Data communication
tranceiver channel
RS485
5V 100 Ω
117 – 118 TX A/B Communication link between System A
&
B for synchronization purposes
Output Data communication
output RS485
5V 100 Ω
119 – 120 RX A/B I
nput Data communication
input RS485
5V 100 Ω
121 – 122 -- Not in
Use -- -- -- --
123 – 124 -- Not in
Use -- -- -- --
125 – 126 AUDIO
MIC. ST
ATION 1
Input Electronically
balanced audio input
10 mV 5 kΩ
127 – 128 PTT (PA) Dr
y contact input ≈20 VDC 2 mA
129 – 130 GC (EM PA) Dr
y contact input ≈20 VDC 2 mA
131 – 132 AUDIO
MIC. ST
ATION 1
Input 10 mV 5 kΩ
133 – 134 PTT (PA) Dr
y contact input ≈20 VDC 2 mA
135 – 136 GC (EM PA) Dr
y contact input ≈20VDC 2 mA
137 – 138 Z1 / +24V Volume Override control outputs Out
put Open collector
source/sink
24VDC 40 mA
139 – 140 Z2 / +24V Open collector
source/si
nk
24VDC 40 mA
141 – 142 Z3 / +24V Open collector
source/si
nk
24VDC 40 mA
143 – 144 Z4 / +24V Open collector
source/si
nk
24VDC 40 mA
145 – 146 Z5 / +24V Open collector
source/si
nk
24VDC 40 mA
147 – 148 Z6 / +24V Open collector
source/si
nk
24VDC 40 mA
149 – 150 SPARE 0V O V reference Reference 0V --
151 – 152 -- Not in
Use -- -- -- --
153 – 154 -- Not in
Use -- -- -- --
155 – 156 -- Not in
Use -- -- -- --
157 – 158 -- Not in
Use -- -- -- --
159 – 160 -- Not in
Use -- -- -- --
All cables used fo
r external interfaces are to be twisted pair, outer screen, 0.75 mm² minimum.
Handbook page
19 of 89