S
PECIFICATIONS
ISDN Terminal Adapter Specifications
Network Interface – Integrated Services Digital Network (ISDN)
Basic Rate telephone service provided by the telephone company
Physical Interface – U (integrated NT1)
Physical Dimensions –
Length 8.66 in. (22.0 cm)
Width 5.44 in. (13.8 cm)
Height 1.56 in. (4.0 cm)
Environmental Operating Range –
50
to 104 F (10 to 50 C)
Relative humidity of up to 95 percent noncondensing
Power – 13/14 VDC at .8 amps
Ring Equivalence Number (REN) – Supports up to three per
Analog Device Port
EMI Certification – FCC Part 15, Class B
RS-232 Port Pin Specifications
Pin #
Pin Name
Signal Direction
1
Shield Ground
(GND)
--
2
Send Data (SD)
To ISDN TA
3
Receive Data (RD)
From ISDN TA
4
Request to Send
(RTS)
To ISDN TA
5
Clear to Send
(CTS)
From ISDN TA
6
Data Set Ready
(DSR)
From ISDN TA
7
Signal Ground
(GND)
--
8
Carrier Detect
(CD)
From ISDN TA
18
Local Loopback
From ISDN TA
20
Data Terminal
Ready (DTR)
To ISDN TA
21
Remote Loopback
To ISDN TA
22
Ring Indicator (RI)
From ISDN TA