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Installing the AlphaServer IP Platform Hardware
AlphaServer Intelligent Peripheral Platform Hardware Owner's Guide
2–7
To cable the DTI/212 120-ohm module to the E-1 network, follow these steps:
1.
Align the RJ-48C connector at the DTI/212 120-ohm module end of the E-1 to DTI/212
120-ohm cable with jack J201 on the rear bracket of the DTI/212 module.
2.
Gently push the cable connector into the RJ-48C jack until it snaps into place.
2.4.1.1.4
Connecting Dialogic LSI/120 Loop-Start Module
The customer is responsible for supplying additional cabling to connect the LSI/120 network
interface module to the telephone company lines.
Refer to the Dialogic Network Hardware Reference for additional information on LSI/120
modules.
You can choose from the following connection options:
•
Use Compaq's BC22F cable. This cable has a DB-25 connector on one end (to connect to
the LSI/120), and a 50-pin connector on the other end that provides 12 tip and ring pin
pairs that are compatible with a standard RJ-21X USOC jack.
•
Use Dialogic's SA/120 RJ-11 assembly. This assembly accepts the 50-pin male connector
from the SA/120 RJ-21 cable and terminates with 12 RJ-11 connectors. This cable allows
you to connect individual subscriber lines to the LSI/120.
The pin-out specifications in Table 2-5 and Table 2-6 are for connector P3 on the LSI/120.
This cable uses a 25-pin female DB-25 connector (Amphenol part number 745495-2 or
equivalent) on the LSI/120 end, and a 50-pin jack (Amphenol part number 157-72500-3 or
equivalent) that is compatible with an RJ-21X USOC jack.
Table 2-5: LSI/120 Loop-Start 25-Pin Designations
TIP 8 1 14 RING 12
RING 8 2 15 TIP 12
TIP 9 3 16 RING 11
RING 9 4 17 TIP 11
TIP 4 5 18 RING 10
RING 4 6 19 TIP 10
TIP 7 7 20 TIP 3
RING 7 8 21 RING 3
TIP 6 9 22 RING 1
RING 6 10 23 TIP 1
TIP 5 11 24 RING 2
RING 5 12 25 TIP 2
RESERVED 13