Lucent Technologies 555-661-140 manual Central Office Network Interface Codes

MERLIN LEGEND Communications System Release 6.1	Issue 1
Installation 555-661-140	August 1998
Connecting the Control Unit to the Network Interface	Page 4-4
Wiring

facilities. These codes are shown in Table 4–2, by trunk type and adapter type.

Table 4-2. Central Office Network Interface Codes

	Federal Interface
Trunk Type	Code for Trunk	Network Interface
LS central office trunk	02LS2	RJ11C, RJ14C, RJ21
GS central office trunk	02GS2	RJ11C, RJ14C, RJ21
DID	02RV2-T	RJ11C, RJ14C, RJ21
OPS	OL13C	RJ11C
Tie trunk	TL31M	RJ2GX
BRI	02B1Q	RJ11C, RJ14C, RJ21
DS1	04DU9-B	RJ48C/X
	04DU9-C	See note below.

NOTE:

The preferred network interface is the RJ48X. If a customer’s site uses the RJ48X interface and the customer’s equipment does not provide connection, the T1 trunk’s receive pair is looped back to the transmit pair. This simplifies troubleshooting the T1 trunk from the central office.

In most installations, the network interface is connected through a cross-connect field to the control unit. However, for systems with fewer than 24 extensions, you can connect the trunk wires directly to the control unit.

When constructing wiring fields between the network interface and the control unit, you must order hardware as individual parts. Do not use Interconnect Wiring or Systimax wiring kits.