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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
RING 8
2
TIP 9
3
RING 9
4
TIP 4
5
RING 4
6
TIP 7
7
RING 7
8
TIP 6
9
RING 6
10
TIP 5
11
RING 5
12
RESERVED
13
AlphaServer Intelligent Peripheral Platform Hardware Owner's Guide 2–7
Installing the AlphaServer IP Platform Hardware
14
RING 12
15
TIP 12
16
RING 11
17
TIP 11
18
RING 10
19
TIP 10
20
TIP 3
21
RING 3
22
RING 1
23
TIP 1
24
RING 2
25
TIP 2
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