MPS-Series – Installation Guide
U-0664-0174.doc – Issue: 07 complete, approved
Page 19 of 24
RJ45 Socket
Pin No.
Signal Description
1 T O/P
100BASE-T
Ethernet
2
TRANSMIT
−
O/P 100BASE-T
Ethernet
3
I/P
100BASE-T
Ethernet
4 and 5
DC+
I/P
+V supply input (PoE: 42 – 57 V DC)
6
RECEIVE
−
I/P
+V supply input (PoE: 42 – 57 V DC)
7 and 8
DC
−
I/P 100BASE-T
Ethernet
①
ETHERNET
Ethernet Port
8
7
6
5
4
3
2
1
•
PoE (Power over Ethernet): see Figure 16 (page 17) for required link settings
•
The Ethernet port can be used for digital audio I/O and for configuration purposes
•
Ethernet and PoE connections do not provide EN 54-16 compliance
•
ASL protocols supported over IP: ASL Serial, TRL (Transactionless) and Paging (DMS).
The protocol is defined by the host (if any), and the MPS will automatically discover the
protocol upon connection.
USB Type B
Pin No.
Signal Description
1
VBUS
I/P
+V supply input
2
D
−
I/O
Negative Data Channel
3
D+
I/O
Positive Data Channel
4 GND
−
Ground
②
USB
USB Port
2 1
3 4
•
USB port can be used for digital audio I/O and for configuration purposes
•
Refer to ASL for software compatibility details
RJ45 Socket
Pin No.
Signal CAT5
Cable
(EIA 568-B)
Description
1
PTT-2+
O/P
White/Orange
Push-To-Talk switch to Router 2
(internally fitted with 6k8/470
Ω
resistors)
2
PTT-1+
O/P
Orange
Same as above, but to Router 1
3
LISTEN-IN+
I/P
White/Green
Listen-in audio from Router
(+ve / 0 dBu nominal / 10 k
Ω
)
4
SPEAK NOW LED-1
I/P
Blue
Cathode of Speak Now indicators
with built-in 2k2
Ω
series resistor
from Router 1 (anode is internally
connected to 15-40 V supply)
5
SPEAK NOW LED-2
I/P
White /Blue
Same as above, but from Router 2
6
LISTEN-IN
−
I/P
Green
Same as above Listen-in, but -ve
7
PTT GND
I/P
White/Brown
PTT-1 or PTT-2: connection to 0 V
or Router PTT-
8
PTT GND
I/P
Brown
Same as above
1
2
3
4
5
6
7
8
Orange/White
Orange
Green/White
Blue
Blue/White
Green
Brown/White
Brown
E
IA
56
8-B
③
ROUTER MIC AUX PORT
ASL Aux. Microphone
Port (Listen-in and
Hardware Bypass
PTT+Speak-Now)
8
7
6
5
4
3
2
1
•
Used to provide hardware bypass and listen-in functions
•
Hardware bypass is provided on inputs 1 and 2 of ASL Voice Alarm Routers
•
Used in addition to one or both standard ASL microphone ROUTER 1 and ROUTER 2
ports below
•
Routers with All Call LED connection: a pull up resistor (10 k
Ω
/ 0.25 W) to +V supply is
required in order to suppress the All Call LED fault
