Output Module Reference Data
Line Retiming Unit (LRU)
214 SSU-2000 User’s Guide 12713020-002-2 Revision D – April 2004
1. Remove the two screws on each I/O connector that a CTA is to be installed on.
2. Install CTA connectors on all outputs corresponding to installed LRMs.
3. Tighten all CTA connector screws securely.
4. Connect the 50-pin Micro-D output cables as required for your application.
Caution: To avoid possible electro-static discharge problems after
removing a CTA connector, you must replace the screws securing the
I/O connectors on the rear panel of the SDU-2000.
Table 8-17. SSU-2000 and CTA I/O Pin Description
Pin
Number
Function
(LRU Applications
Only)
CTA Pin
Function
Pin
Number
Function
(LRU Applications
Only)
CTA Pin
Function
1 Not Connected Not Connected 26 Not Connected Not Connected
2 3R-ITIP-1 3R-ITIP-1 27 3R-IRING-1 3R-IRING-1
3 Not Connected Not Connected 28 Not Connected Not Connected
4 3R-OTIP-1 3R-OTIP-1 29 3R-ORING-1 3R-ORING-1
5 2R-ITIP-1 2R-ITIP-1 30 2R-IRING-1 2R-IRING-1
6 2R-OTIP-1 2R-OTIP-1 31 2R-ORING-1 2R-ORING-1
7 RELAY SINK PORT-1 Not Connected 32 RELAY SINK PORT-2 Not Connected
8 3R-ITIP-2 3R-ITIP-2 33 3R-IRING-2 3R-IRING-2
9 3R-OTIP-2 3R-OTIP-2 34 3R-ORING-2 3R-ORING-2
10 2R-ITIP-2 2R-ITIP-2 35 2R-IRING-2 2R-IRING-2
11 2R-OTIP-2 2R-OTIP-2 36 2R-ORING-2 2R-ORING-2
12 CTA-1 (2-PORT) Not Connected 37 5vDC Not Connected
13 Not Connected Not Connected 38 Not Connected Not Connected
14 3R-ITIP-3 3R-ITIP-3 39 3R-IRING-3 3R-IRING-3
15 3R-OTIP-3 3R-OTIP-3 40 3R-ORING-3 3R-ORING-3
16 2R-ITIP-3 2R-ITIP-3 41 2R-IRING-3 2R-IRING-3
17 2R-OTIP-3 2R-OTIP-3 42 2R-ORING-3 2R-ORING-3
18 RELAY SINK PORT-3 Not Connected 43 RELAY SINK PORT-4 Not Connected
19 3R-ITIP-4 3R-ITIP-4 44 3R-IRING-4 3R-IRING-4
20 3R-OTIP-4 3R-OTIP-4 45 3R-ORING-4 3R-ORING-4
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