Chapter 2. Port Card Overview
12
Version 1.2 Apr 2006
2.6 4 x Data I/F Module Overview
The 4 x Data 4-Channel Port Cards for the
Fiber Multiplexer
are modular PCAs which slide
into the
Fiber Multiplexer
chassis and provide four completely independent Data (V.35, X.21,
RS-530, RS-449, or RS-232) interfaces. The PCA module terminates with a HD62F connector that
is designed to connect to a physical adapter. The Data module is available in one of ten interface
and cable options.
1. 4 x V.35 with 4 MB34 Female connectors
2. 4 x V.35 with 4 MB34 Male connectors
3. 4 x X.21 with 4 DB15 Female connectors
4. 4 x X.21 with 4 DB15 Male connectors
5. 4 x RS-530 with 4 DB25 Female connectors
6. 4 x RS-530 with 4 DB25 Male connectors
7. 4 x RS-449 with 4 DB37 Female connectors
8. 4 x RS-449 with 4 DB37 Male connectors
9. 4 x RS-232 with 4 DB25 Female connectors
10. 4 x RS-232 with 4 DB25 Male connectors
When the
Fiber Multiplexer
is ordered with an
X21 Port Card
option, a
4-CHANNEL
X.21 Card
and adapter cable are supplied with each DB15 wired according to the following table.
Signal
Function
DB15
PIN#
Abbreviation Direction
Description
Shield 1
FG
<->
Chassis ground.
May be isolated from signal ground.
Ground
8
SG
<->
Common signal ground.
Transmit(A)
Transmit(B)
2
9
TD(A)
TD(B)
To
MUX
UNIT
Serial digital data from DTE.
Receive(A)
Receive(B)
4
11
RD(A)
RD(B)
Fm.
MUX
UNIT
Serial digital data at the output of the
Fiber
Multiplexer
receiver.
Control(A)
Control(B)
3
10
RTS(A)
RTS(B)
To
MUX
UNIT
A ON signal to the
Fiber Multiplexer
when data
transmission is desired.
Indication(A)
Indication(B)
5
12
DCD(A)
DCD(B)
Fm.
MUX
UNIT
Constantly ON, except when a loss of the
received carrier signal is detected.
Ext. Timing(A)
Ext. Timing(B)
7
14
ETC(A)
ETC(B)
To
MUX
UNIT
A transmitted data rate clock input from the data
source.
Signal Timing(A)
Signal Timing(B)
6
13
RC(A)
RC(B)
Fm.
MUX
UNIT
A received data rate clock for use by an external
data source.
Table 2-1 : DB15 adapter cable pin out for X.21
