User's Manual

Specifications
Connector Specifications
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DB15 Connector
This provides DB15 connectivity for the HPT225BT with a DB9 for connection to a PC/CE Device for
configuration.
Figure 1. DB15 Connector
This connector provides DB15 connectivity for the HPT225BT with DTE. About using and configuration
RS-485 please contact JAVAD GNSS support.
Table 6. DB15 Connector Specifications
DB15 (Fem)
Number Signal Name Dir Details
1 DCD O Data Carrier Detect (RS-232)
2 DSR O Data Terminal Ready (RS-232)
3 RTS I Receive Data positive line (RS-422)/
Clear to Send (RS-232)
4 DATAIN I Receive Data negative line (RS-422)/
Receive Data (RS-232)
5 Reserved Do not use
6 USB_PWR I Power Input line (USB)
7 Ground Power Ground
8 Reserved Do not use
9 DSR_IN I Data Set Ready (RS-232)
10 TX+/RTS_OUT O Transmit Data positive line (RS-422) /
Request to Send (RS-232)
11 TX-/TX_OUT O Transmit Data negative line (RS-422) /
Transmit Data (RS-232)
12 Reserved Do not use
13 USB_D+ Positive line (USB)
14 USB_D- Negative line (USB)
15 GND Signal to Ground