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T1 Modem Bank

Figure 1

T1 Modem Bank Chassis, Front View.......................................................................................................1

Figure 2

Power Supply.............................................................................................................................................9

Figure 3

Line Card and Synchronous Cable Connections for Standalone T1 Modem Bank.................................11

Figure 4

Bracket Position For 19-inch Rack..........................................................................................................12

Figure 5

Bracket Position For 24-inch Rack..........................................................................................................13

Figure 6

T1 Modem Bank Unit Spacer ..................................................................................................................14

Figure 7

Line Card .................................................................................................................................................15

Figure 8

Synchronous Ports and Terminal Port .....................................................................................................16

Figure 9

Two Daisy Chains of T1 Modem Banks to be Connected Locally .........................................................17

Figure 10

Remote T1 Modem Bank Units ...............................................................................................................18

Figure 11

Mixing EPC Concentrators with T1 Modem Bank Units........................................................................19

Figure 12

DIP Switch Settings for I/O Port Address ...............................................................................................21

Figure 13

EPC/X Host Adapter Connected Locally to T1 Modem Banks ..............................................................25

Figure 14

Local and Remote T1 Modem Bank Units ..............................................................................................26

Figure 15

EPC/X Host Adapter Connected to Concentrators and T1 Modem Bank Units .....................................26

Figure 16

T1 Modem Bank Display Panel...............................................................................................................28

Figure 17

Main Screen .............................................................................................................................................36

Figure 18

T1 Modem Bank Configuration Screen...................................................................................................37

Figure 19

Line Card Status Display .........................................................................................................................42

Figure 20

Line Card Options Display ......................................................................................................................43

Figure 21

Modem Test Results ................................................................................................................................57

Figure 22

Line Card .................................................................................................................................................66

Figure 23

Modem Card ............................................................................................................................................69

Figure 24

Quick Manager Modem Revision Screen ................................................................................................71

Figure 25

Power Supply...........................................................................................................................................74

Figure 26

Fan Assembly ..........................................................................................................................................75

Figure 27

AC Power Inlet ........................................................................................................................................76

Figure 28

T1 Modem Bank and Public Switched Telephone Network ...................................................................77

Figure 29

Functional Block Diagram of the T1 Modem Bank ................................................................................78

Figure 30

Typical PC Memory Usage - 1st Megabyte.............................................................................................86

Figure 31

Simple Terminal Cable ............................................................................................................................91

Figure 32

RJ-45 Plug ...............................................................................................................................................92

Figure 33

Eight-Wire Direct Daisy Chain Cable Wiring.........................................................................................94

Figure 34

Four-Wire Direct Daisy Chain Cable Wiring ..........................................................................................95

Figure 35

RS-232 Synchronous Modem Cables ......................................................................................................97

Figure 36

RS-422 Synchronous Modem Cables ......................................................................................................98