Rear & Side - Microhard Systems BulletPlus Operating Manual

3.0 Hardware Features
3.1.3.2 Rear & Side View
On the side of the Bullet is the Data Port (RS232) and on the back are the Power and Ethernet(PoE)
interfaces and the 2x Programmable I/O.
The Data Port (RS232 DCE) on the side of the unit is used for
RS232 Serial Data based field devices at 300 bps to 921kbps.
The Ethernet Ports (2LAN/WAN) are 10/100 Mbps RJ-45
interfaces used to connect devices Ethernet based field devices.
Programmable I/O– The Bullet has 2 programmable Analog/
Digital Inputs or 2 Digital Outputs. Maximum recommended load
for the output pin is 150mA @ 30 Vdc (Vin).
Vin+/Vin– is used to power the unit. The input Voltage range is
7-30 Vdc.
PoE– The Bullet can also be powered using Passive PoE on the
Ethernet Port (WAN), via a PoE injector.
Caution: Using a power
supply that does not
provide proper voltage
may damage the modem.
© Microhard Systems Inc.
Ethernet RJ45 Connector Pin Number
Source
1 2 3
Voltage
9 - 30 Vdc Data Data Data
Table 3-3: Ethernet PoE Connections
Drawing 3-7: BulletPlus Rear & Side View
4 5 6 7
DC+ DC+ Data DC-
Name Data Port
DCD 1
RXD 2
TXD 3
DTR 4
SG 5
DSR 6
RTS 7
CTS 8
RING 9
Table 3-2: Data RS232 Pin Assignment
Vin+ Vin-
8
IO-1 IO-2
DC-
Input or
Output
O
O
I
I
O
I
O
O
21