30
Chapter 2 - Configuration
2.3
Configuration 2
Configuration 2 is two MultiMux MMH904Ca four channel multiplexers
with two external Multi-Tech MultiModemII MT2834BLs linking the two
sites over an async dial-up line. The MultiModemII's are connected to
the dial-up line and the RS232C interface from the modems is connected
to the EXTERNAL COMPOSITE LINK connector on the back panel of
the MMH904Ca's. The MH904Ca's are set up for an external link device
with a maximum link speed of 57,600 bps. The maximum link speed is
dependent on the compressibility of the data over the link. The
MultiModemIIs are set up for data compression and error correction in
order to achieve the link speed.
Figure 2-2. Configuration 2
The External Composite Link LEDs on the lower left side of the front
panel and the SYSTEM ASYNC LINK LED in the middle of the front
panel of the MMH904Ca's are active for this configuration. The channels
are set up with the same considerations as in Configuration 1.The
composite link configuration may be changed using the List Composite
Link Configuration ($L) command which is shown in the following
example.
LINK
LINK
MUX
MUX
EOF XMT
EOF RCV
LOOP
DEVICE
FORMAT
SPEED
CLOCKING
CHARACTER
CHARACTER
BACK
EXTERNAL
ASYNC
57600
EXTERNAL
FF
FF
OFF
Configuration 2 Composite Link Configuration
Summary of Contents for MMH900
Page 1: ...MMH900 Series Statistical Multiplexer User Guide...
Page 7: ...Chapter 1 Introduction Description...
Page 26: ...Chapter 2 Configuration...
Page 33: ...Chapter 3 Front Rear Panel Descriptions...
Page 44: ...Chapter 4 Installation...
Page 51: ...Chapter 5 Commands...
Page 89: ...Chapter 6 Operating Procedures...
Page 96: ...Chapter 7 Troubleshooting...
Page 111: ...Chapter 8 Service Warranty Technical Support...
Page 116: ...Appendices...
Page 184: ...Glossary...
Page 193: ...Glossary 193 X Y Z...
Page 200: ...S000315A...