User's Manual

9
O PTIONAL DB25 C ONNECTOR
The unit may be optionally configured with a DB25 connector in place of terminal block con-
nections.
Figure 7: Optional DB25 Connector
Pinouts on this connector are as follows:
A NTENNA S PECIFICATION
Antennas used with this module should be of the following types:
Antenna type: External Dual Band ¼ wave antenna
Maximum Antenna Gain: 3.0 dBi
Antenna connector: SMA
Antenna type: External Dual Band ¼ wave antenna Magnet mount
Maximum Antenna Gain: 3.5 dBi
Antenna connector: SMA
Cable length and loss: 3 meter, RG-174, total loss 2.8 dB
Pin Signal Notes Pin Signal Notes
1 Case Ground N/U 14 Power Ground +5V/+12V Supply/Battery Rtn
2 TXD - Data In Serial Data Input 15 Power Ground +5V/+12V Supply/Battery Rtn
3 RXD - Data Out Serial Data Output 16 + Battery Optional +12V Battery Backup In
4 Out 2 Relay Contact 17 + Battery Optional +12V Battery Backup In
5 Out 2 Relay Contact 18 +12 Power Input +12V Supply In
6 Out 1 Relay Contact 19 +12 Power Input +12V Supply In
7 Signal Ground Serial Data Common 20 Out 1 Relay Contact
8 +5 VDC Source Voltage (200ma max) 21 Power Ground +5V/+12V Supply/Battery Return
9 nPSEN Factory Only - DO NOT USE 22 In 4 - Input 4 Negative
10 In 3 - Input 3 Negative 23 In 4 + Input 4 Positive (~9ma@12V)
11 In 3 + Input 3 Positive(~9ma@12V) 24 In 2 - Input 2 Negative
12 In 1 - Input 1 Negative 25 In 2 + Input 2 Positive (~9ma@12V)
13 In 1 + Input 1 Positive(~9ma@12V)