DS1000/2000 Correspondence Course
DS1000 System Installation
NEC America DS1000/2000 Workbook ◆ 67
Installing the 2-OPX Module on the DS1000 System
The 2-OPX Module (P/N 92177A) provides two 2500 type analog circuits
for connection to on-premise 2500 type single line devices (i.e., telephones,
fax machines, modems, voice mail, etc.) and to telco OL13B/C OPX circuits.
It uses a single digital extension circuit for the power and signaling for both
analog ports.
To install a 2-OPX Module:
1. Install a modular jack for the 2- OPX Module within six feet of the mod-
ule’s location.
2. Run one-pair 24 AWG station cable from the cross-connect block to the
modular jack.
3. Terminate the station cable WHT/BLU - BLU/WHT leads to the RED
and GRN lugs in the modular jack.
4. Back at the main equipment location, run one pair of cross-connect wire
between the pins on the extension block and cross-connect block to
complete the connection.
5. Install bridging clips as required.
6. Ground the 2-OPX Module by connecting a 14 AWG ground wire from
the FG lug to a known earth ground.
7. Plug a line cord into the 2-OPX unit and the 2-OPX’s modular jack.
The DS1 LED on the 2-OPX Module lights steadily.
Programming 2-OPX Modules:
➻ 1801: Extension Circuit Type
Assign the 2-OPX extension circuit type 21.
The 2-OPX Module uses a single port.
Notes;
Each 2-OPX Module provides 2 OPX ports. The first 2-OPX extension
number is the same as the port’s extension number. The second 2-OPX
extension number is the first port plus 201. For example, the two extension
numbers for the 2-OPX Module plugged into extension 314 are 314 and
515.
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