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NCB-IM Routers
• For 4-wire leased-line operation:
Step 5. All telephone line connections are recommended to use surge suppression devices on the
•
The DITEK and EDCO modules are identical in both installation and operation.
shows wiring terminations for up to 2-pairs of wires and is typical for both manufacturer's
models.
Step 6. Connect your Echelon network wires to the router connector labeled NETWORK.
Step 7. Plug the router's transformer power supply into the router's DC power connector.
32
3
4
5
6
•
Connect pins 3 and 4 of NCB module 1 to the circuit carrying audio from NCB1 to
NCB2; terminate this circuit to pins 2 and 5 of NCB2.
•
Connect pins 2 and 5 of NCB module 1 to the circuit carrying audio from NCB2 to
NCB1; terminate this circuit to pins 3 and 4 of NCB2.
circuit. Accepted manufacturers and models are DITEK, model 2MLPL110B or EDCO,
model PC2TEL. These devices must be mounted in their own enclosures to the
JNISCAB-5 with all connections run in conduit. The following illustration is a typical
installation block diagram.
Protected
Phone Line
Echelon
Network
NCB-IM
Surge
Suppressor
Figure 4.7 Telephone Line Surge Suppression
Pair 2 Unprotected
Supply Wiring
Pair 1 Unprotected
Supply Wiring
Ground
Figure 4.8 DITEK or EDCO Wiring Block
IFI Routers/Repeaters Installation & Operation Manual - P/N: 53388:Rev: A1 5/5/09
2 wire tip/4 wire transmit tip
2 wire ring/4 wire transmit ring
4 wire receive ring (4-wire channels
only)
No Connection
Unprotected
Protected
Phone Line
Phone Line
Surge
Suppressor
9
10
7
8
5
6
3
4
1
2
NCB-IM Installation
Echelon
Network
NCB-IM
Figure 4.8
Ground
Pair 2 Out to
Protected Equipment
Pair 1 Out to
Protected Equipment
Interconnect Keys
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