Service manual

9. CONNECTOR PIN ASSIGNMENT
9.18 Service Manual BSM-4100
CNJ501 (for Nellcor SpO2 board) BSM-4102/4104/4112/4114 only
* When the MP506 is built in the instrument, “NELLCOR OxiMax” is indicated below the SpO
2
socket on the front
panel. Refer to page 1.20 “On the BSM-4102/4104/4112/4114 Monitors”.
Signal Description Signal Name Pin Number Signal Name Signal Description
Not connected
Floating ground
Floating ground
−
5 V for analog circuit
MP304/MP506 serial data (TXD)
CTS output to MP506
+5 V for digital circuit
N.C.
EF
EF
−
5F
NEL_RX
N.C. at MP304
EF at MP506*
+5DF
1
3
5
7
9
11
13
2
4
6
8
10
12
14
EF
RESET
N.C.
NEL_TX
+5F
EF
XNEL
Floating ground
Reset output
Not connected
MP304/MP506 serial data (RXD)
+5 V for analog circuit
Floating ground
MP304/MP506 connection
recognition