| INSTALLATION |
To install the data bus cables, connect the IAM unit (if present) first, then the Master GTI unit, and finally the standard GTI units (from the lowest channel to the highest channel). Plug the standard connector of the first cable directly into the first unit, and the stackable connector of the first cable directly into the second unit. Then plug the standard connector of the second cable into the stackable connector of the first cable (which is plugged into the second unit), and the stackable connector of the second cable directly into the third unit. Continue connecting the cables in this way until all units are connected together. Then, plug the PCM/Data bus termination plug into the stackable connector of the last cable (which is plugged into the last unit).
Figure 1 shows the standard routing for a typical ELI system. Figure 32 shows the pin-out information for PCM/Data bus cables.
Female Part of Connector Mates with Next Cable
|
| Male Part of Connector Mates with GTI / IAM |
1 | 1 | 1 |
|
| PCM Data Bus - Bit 0 |
13 | 13 | 13 |
2 | 2 | 2 |
|
| PCM Data Bus - Bit 1 |
14 | 14 | 14 |
3 | 3 | 3 |
|
| PCM Data Bus - Bit 2 |
15 | 15 | 15 |
4 | 4 | 4 |
|
| PCM Data Bus - Bit 3 |
16 | 16 | 16 |
5 | 5 | 5 |
|
| PCM Data Bus - Bit 4 |
17 | 17 | 17 |
6 | 6 | 6 |
|
| PCM Data Bus - Bit 5 |
18 | 18 | 18 |
7 | 7 | 7 |
|
| PCM Data Bus - Bit 6 |
19 | 19 | 19 |
8 | 8 | 8 |
|
| PCM Data Bus - Bit 7 |
20 | 20 | 20 |
9 | 9 | 9 |
|
| PCM Data Bus - Frame Sync |
21 | 21 | 21 |
10 | 10 | 10 |
|
| Console Data Bus |
22 | 22 | 22 |
11 | 11 | 11 |
|
| Subscriber Data Bus |
23 | 23 | 23 |
12 | 12 | 12 |
|
| Repeater Data Bus |
24 | 24 | 24 |
Figure 32 - PCM / Data Bus Cable
Site Controller Computer
Two data cables must connect the Master GTI to the Site Controller computer. Connect a 19B803826P1 cable from the left female
Port 31 (LIC) | Port 30 (RIC) |
Figure 33 - Site Controller Computer Connections
11. IAM SOFTWARE
The 11th step to install the ELI option applies only if an IAM was supplied. Record the software version number marked on the software PROM in the IAM unit. If a problem is later encountered with the equipment, the software version number may be essential to help with the diagnosis.
The location of the software PROM in the IAM unit is shown in Figure 34.
U23 
FRONT
Figure 34 - IAM Software Locations
The IAM software is stored in U23 in the IAM. A sample label for U23 is shown in Figure 35. The actual version number of the software supplied may be different than that shown.
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