Installation guide

Appendixes 203
Synapse Installation Guide
Power
Requirements
PSTN Gateway: 5.1 V DC @ 1700 mA
T1 Gateway and ATA: 12 V @ 18 Watts
SB67020 and SB67030/031 Deskset: 5.1 V DC @ 1700 mA (AC Adapter)
SB67020 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
Table 5. Technical Specifications (Continued)
Feature Specification
Figure 162. T1 Jack Pinouts