Chapter 2 - Hardware Installation
17
2.2.1
12 -Position DIP Switch (# 1-12)
The 12-position DIP switch is used to set data rate, clocking, RTS
control, DSR control, and Async/Sync operation, diagnostic modes
(Loopback Test, Test Pattern ), Circuit Assurance, and System
Status. The default settings are shown in Table 2-1. If you want to
make changes to one of these settings, refer to section 2.3.
2.2.2
4-Position DIP Switch (# 13-16)
The 4-position DIP switch is used to select Async Word Length,
Elastic Store, and Anti-Streaming options. The defaults are 10-Bit
Async Word Length, Elastic Store disabled, and Anti-Streaming
disabled. If changes to these settings are required, refer to section
2.3.
2.2.3
RS232/V.35 Shunt
Data terminal equipment with either a RS232 or V.35 interface can
be connected to the DB25 connector on the backplane of the rack.
The 16-pin shunt on the back of the MT56DSU-R board must be
placed in either the "V.35 position or the "RS232" position. The
interface is determined by the position of this 16-pin shunt. The
MT56DSU-R is shipped from the factory with the 16-pin shunt in the
RS232 position.
82023101.p65
2/12/01, 2:52 PM
17
Summary of Contents for MT56DSU-R
Page 5: ...MultiDSU56K TM Chapter 1 Introduction and Description 82023101 p65 2 12 01 2 52 PM 5...
Page 14: ...MT56DSU R Owner s Manual 14 82023101 p65 2 12 01 2 52 PM 14...
Page 15: ...MultiDSU56K TM Chapter 2 Hardware Installation 82023101 p65 2 12 01 2 52 PM 15...
Page 22: ...MT56DSU R Owner s Manual 22 82023101 p65 2 12 01 2 52 PM 22...
Page 23: ...MultiDSU56K TM Chapter 3 Operation 82023101 p65 2 12 01 2 52 PM 23...
Page 31: ...MultiDSU56K TM Chapter 4 Troubleshooting 82023101 p65 2 12 01 2 52 PM 31...
Page 41: ...MultiDSU56K TM Chapter 5 Warranty Service and Tech Support 82023101 p65 2 12 01 2 52 PM 41...
Page 44: ...MT56DSU R Owner s Manual 44 82023101 p65 2 12 01 2 52 PM 44...
Page 45: ...MultiDSU56K TM Appendixes 82023101 p65 2 12 01 2 52 PM 45...
Page 56: ...MT56DSU R Owner s Manual 56 82023101 p65 2 12 01 2 52 PM 56...
Page 57: ...MultiDSU56K TM Glossary 82023101 p65 2 12 01 2 52 PM 57...