Nortel Networks M3110 - Manual (Page 340)

Page 340 of 504 Appendix A: Meridian Modular Telephones
553-3001-367 Standard 3.00 August 2005
The headset should be designed to work with a telephone jack with these
characteristics:
• Transmit interface: +5 V through 10K DC bias resistance with maximum
current of 500 micro amps. The differential input impedance is 10K
ohms. Connects to pins 2 and 5 of the handset jack.
• Receive interface: single ended output with output impedance of 180
ohms. Connects to pins 3 and 4 of the handset jack.
Relocation
This section describes how to relocate a Meridian Modular Telephone and its
associated dataport Terminal Number (TN) without the intervention of a
technician.
Modular Telephone Relocation is designed specifically for the Meridian
Modular Telephones and is an enhancement to Automatic Set Relocation. If
dataport TN information exists for the terminal, it is automatically relocated
when the telephone is relocated.
When a telephone is relocated-out, a relocation block is built to store the
relocation information in the protected data area. The relocation block
includes the old TN, the terminal ID information, the serial number of the
telephone, and other information.
Figure 57
Back of telephone showing Meridian Programmable Data Adapter
Flashing
LED
RS-232
interface
553-1897