Electroline Control Unit IV - Page 6

Control Unit IV Reference Manual
iv 529-0004 Ver.3
B. CABLE ASSEMBLIES B-1
B.1 Pinout on COM ports................................................................................................B-1
B.1.1 Pinout for COM 1 and COM 2 ports..............................................................B-1
B.1.2 Pinout for COM 3 port...................................................................................B-2
B.2 RS-232 cables...........................................................................................................B-3
B.2.1 Cable between the Control Unit and a host computer (DCE to DTE)...........B-3
B.2.2 Cable between the Control Unit and a modem (DCE to DCE)......................B-5
B.3 Cable assembly for redundancy systems...................................................................B-6
I. INDEX I-1
R. MANUAL REVISION RECORD R-1
Figures
Figure 1-1: The Control Unit’s role in a cable TV network..................................................1-3
Figure 1-2: The Control Unit’s role in return path monitoring..............................................1-4
Figure 1-3: Front panel of the Control Unit IV......................................................................1-8
Figure 1-4: Rear panel of the Control Unit IV.......................................................................1-8
Figure 2-1: Installation of the unit in an equipment rack.......................................................2-2
Figure 2-2: Connecting the Workabout to the Control Unit’s COM 3 port for setup ...........2-6
Figure 2-3: Connection cables for a single Control Unit.......................................................2-8
Figure 2-4: Redundancy kit cables ........................................................................................2-8
Figure 2-5: Control Unit connection......................................................................................2-9
Figure 2-6: Connections in a redundancy system................................................................2-13
Figure 2-7: Connecting the Control Unit’s COM 3 port to a computer for setup ...............2-14
Figure 5-1: Fuse holder removal............................................................................................5-1
Figure 5-2: Spare fuse holder.................................................................................................5-1
Figure 5-3: Internal view of the Control Unit IV with a RAM expansion board ..................5-3
Figure 5-4: RAM Expansion Board installation....................................................................5-5
Figure 5-5: Connection for programming............................................................................5-16
Figure B-1: Female DB-25 connector (COM 1 and COM 2)...............................................B-1
Figure B-2: Female DB-9 connector (COM 3).....................................................................B-2
Tables
Table 1-1: Identification of carrier type.................................................................................1-1
Table 1-2: Nominal and actual capacity ................................................................................1-6
Table 1-3: Control Unit ports ................................................................................................1-9
Table 3-1: Control Unit protocols used with various billing system providers.....................3-2
Table 3-2: Mandatory parameters on COM 3........................................................................3-7
Table 3-3: COM 2 synchronization settings for the redundancy system.............................3-11
Table 3-4: Data configurations possible on COM ports 1 and 2 .........................................3-13