C H A P T E R 8 A P P E N D I X C : P I N A S S I G N M E N T S
V100 Versatile Multiplexer Technical Manual Version 2.2
Page 214 of 231
8.3
Data Ports
All data ports are presented with a DB15F interface:
Pin #
Signal Name
DTE
DCE
V.11 RS449
V.35
RS530
V.24
Shield Shield Shield Shield Shield Shield C C
1 GND GND GND
GND
GND
C
C
2 T(A) SDA SDA SDA
TXD
O
I
9 T(B) SDB SDB SDB - O
I
3 C(A) RTSA DTR RTSA DTR
O
I
10 C(B) RTSB - RTSB - O I
4 R(A) RDA RDA
RDA
RXD I
O
11 R(B) RDB RDB RDB - I
O
5 I(A) RRA
DCD
RRA
DCD
I
O
12 I(B) RRB - RRB - I
O
6 S(A) RTA SCRA
SCRA
RXC I
O
13 S(B) RTB SCRB
SCRB - I
O
7 - STA
SCTA
SCTA
TXC
I
O
14
-
STB SCTB SCTB - I O
8 - TTA
SCTEA
SCTEA
EXTXC
O
I
15 - TTB
SCTEB
SCTEB
- O
I
8.4
Analogue Voice Ports
8-way RJ45-Type Analogue voice port
Pin Connections
4-wire Tie-line mode
2-wire FXS/FXO mode
Pin No.
Signal Name
Signal Type
Name
Type
1 MREF Reference
-
-
2 M
Current
Detector
-
-
3 RXA
Input
-
-
4 TXRXA Input/Output TIP Input/Output
5 TXRXB Input/Output RING
Input/Output
6 RXB
Input
-
-
7 E
Contact
Closure
-
-
8 EREF Reference -
-
WARNING:
LINE VOLTAGES ARE PRESENT ACROSS TIP AND RING IN FXS MODE.
CONNECT ONLY TELEPHONE APPLIANCES IN THIS MODE. DAMAGE COULD
RESULT FROM CONNECTION TO A PABX PORT.