Synapse Installation Guide Back to Contents
Appendixes 143
Power
Requirements
PSTN Gateway: 5.1 V DC @ 1700 mA
T1 Gateway and ATA: 12 V @ 18 Watts
SIP Gateway: 12 V @ approx. 13 Watts
SB67020/025 and SB67030/031 Deskset: 5.1 V DC @ 1700 mA (AC Adapter)
SB67020/025 Deskset: PoE Class 2
SB67031 Deskset: PoE Class 3
Cordless Handset, Cordless Headset chargers: 6 V DC @ 200 mA
Cordless Handset: 2.4 V 550 mA Ni-MH battery
Cordless Headset: 3.7 V 240 mAH battery
RJ-45 Ethernet
Network Jack
(10Base-T/100Base-Tx) with auto MDI/MDIX switching
PSTN Gateway
Telephone Jacks
1–4 and BYPASS (FXO ports) use traditional 2-conductor wiring
T1 Jack RJ48C jack on the supplied T1 cable:
Pin 1: R pair, RX-Ring
Pin 2: T pair, RX-Tip
Pin 4: R1 pair, TX-Ring
Pin 5: T1 pair, TX-Tip
Gateway BYPASS 26 mA loop current; REN 5; 100 m max loop length
LAN Cable Cat.-5 standard cable, except the T1 Gateway, which uses a standard Cat.-6
LAN cable
[T1] T1 Port RJ48C standard T1 interface
The T1 Gateway provides ITU G.168 compliant hardware-based echo
cancellation.
[ATA] FXS 26 mA loop current; REN 5; 100 m max loop length
[ATA] AUX In 3.5 mm Tip (Signal), Ring (NC) Sleeve (Ground) (TRS) jack
Frequency range 300 to 3.4 KHz
Input level -15 dBm nominal
Impedance greater than or equal to 10 K ohms input
AC coupling
Table 9. Technical Specifications (Continued)
Feature Specification
Figure 49. T1 Jack Pinouts
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