MB/941 – Hardware Reference
10
D o c u m e n t R e v i s i o n 1 . 1
3.4
J4: SIM Card Holder
Pin Name
Function
1
SIM_VCC
SIM Card Power
2
SIM_RST
SIM Card Reset
3
SIM_CLK
SIM Card Clock
5
SIM_GND SIM Card Ground
6
SIM_VPP
Not connected.
7
SIM_DAT
SIM Card Data
Table 6:
Pinout SIM card holder
3.5
J5: Serial Port COM1 (RS232/RCM)
Pin Name
Function
1
RXD1
COM1 Serial Port, RXD Pin (RS232)
2
RTS1
COM1 Serial Port, RTS Pin (RS232)
3
TXD1
COM1 Serial Port, TXD Pin (RS232)
4
CTS1
COM1 Serial Port, CTS Pin (RS232)
5
GND1
Ground
6
RCM1
COM1 Serial Port, RCM Pin (RS232)
Table 7:
Pinout COM1 connector
3.6
J6: Screw Terminals
Pin Function
1
COM2 Serial Port RS485+
2
COM2 Serial Port RS485-
3
Vin 24 VDC ±10%
4
GNDin
Table 8:
Pinout screw terminals
3.7
J7: 10/100 Mbps Ethernet Interface LAN1
LAN1 offers one green LED which is on when there is a LAN link established and blinks when
there is traffic. The yellow LED is not connected.
Pin Name
Function
1
TX+
10/100 Mbps LAN, TX+
2
TX-
10/100 Mbps LAN, TX-
3
RX+
10/100 Mbps LAN, RX+
4
---
Not Used.
5
---
Not Used.
6
RX-
10/100 Mbps LAN, RX-
7
---
Not Used.
8
---
Not Used.
Table 9:
Pinout Ethernet interface LAN1
