NEC SL2100 Hardware Manual page 86

ISSUE 4.0
While an Analog Telephone (port) is ringing or MW-lamp is flashing on an
Analog Phone (port), do not disconnect the phone from the port and or connect
another type of the terminal to this port.
3.4.2.1 Connectors
The following table shows the pin-outs for the RJ-61 cable connector for 2W Digital/Analog extension
connections.
Table 2-13 RJ-61 Digital Connector Pin-Outs (J4 (ESI))
8 765 4321
INSTALLING THE EXPANSION INTERFACE BOARDS
Figure 2-66 Connectors of 082-B1
Pin No.
1
2
3
4
5
6
7
8
Pin Function (ESI: 1-4 / 5-8)
ESI 4/8 (Tip)
ESI 3/7 (Tip)
ESI 2/6 (Tip)
ESI 1/5 (Ring)
ESI 1/5 (Tip)
ESI 2/6 (Ring)
ESI 3/7 (Ring)
ESI 4/8 (Ring)
SL2100
84